Chamberlain Garage Door Opener 3245M 1 3 HP User Manual

The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.liftmaster.com

GARAGE DOOR OPENER

Models 3245M 1/3 HP

3255M 1/2 HP

3255-2M 1/2 HP

For Residential Use Only

Owner’s Manual

■ Please read this manual and the enclosed safety materials carefully!

■ Fasten the manual near the garage door after installation.

■ The door WILL NOT CLOSE unless the Protector System is connected and properly

aligned.

■ Periodic checks of the opener are required to ensure safe operation.

■ The model number label is located on the front panel of your opener.

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Preparing your garage door

Before you begin:

To prevent possible SERIOUS INJURY or DEATH:

• Disable locks.

• ALWAYS call a trained door systems technician if garage

door binds, sticks or is out of balance. An unbalanced garage

door may NOT reverse when required.

• NEVER try to loosen, move or adjust garage door, door

springs, cables, pulleys, brackets or their hardware, ALL of

which are under EXTREME tension.

• Disable ALL locks and remove ALL ropes connected to

garage door BEFORE installing and operating garage door

opener to avoid entanglement.

• Remove any ropes connected to garage door.

• Complete the following test to make sure your garage

door is balanced and is not sticking or binding:

1. Lift the door about halfway as shown. Release the

door. If balanced, it should stay in place, supported

entirely by its springs.

2. Raise and lower the door to see if there is any

binding or sticking.

If your door binds, sticks, or is out of balance, call a

trained door systems technician.

To prevent damage to garage door and opener:

• ALWAYS disable locks BEFORE installing and operating the

opener.

• ONLY operate garage door opener at 120V, 60 Hz to avoid

malfunction and damage.

Sectional Door

Tools needed

One-Piece Door

During assembly, installation and adjustment of the

opener, instructions will call for hand tools as illustrated

below.

Pencil

Carpenter’s

Level (Optional)

Hack Saw

Tape Measure

Wire Cutters

Drill

Claw Hammer

3/16", 5/16" and

5/32" Drill Bits

Pliers

1/2" and 7/16" Sockets

and Wrench

Stepladder

Screwdriver

Adjustable End Wrench

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Planning

Identify the type and height of your garage door. Survey

your garage area to see if any of the conditions below

apply to your installation. Additional materials may be

required. You may find it helpful to refer back to this

page and the accompanying illustrations as you proceed

with the installation of your opener.

FINISHED CEILING

SECTIONAL DOOR INSTALLATION

Support bracket &

fastening hardware

is required.

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, steel, aluminum,

door with glass panels, etc.).

See page 19 for details.

See page 12.

Slack in chain tension

is normal when

garage door is closed.

Header Wall

Motor Unit

Wall-

mounted

Door

Control

Extension Spring

Torsion Spring

Vertical Centerline

of Garage Door

Access Door

Safety

Reversing

Sensor

Gap between floor and bottom of door

must not exceed 1/4" (6 mm).

Safety Reversing Sensor

FINISHED CEILING

ONE-PIECE DOOR WITHOUT TRACK

Support bracket

& fastening

hardware is required.

See page 12.

Motor Unit

Slack in chain tension

is normal when

garage door is closed.

Header

Wall

ONE-PIECE DOOR WITH TRACK

Slack in chain tension is normal when

garage door is closed.

Wall-mounted

Door Control

Access

Door

Access

Door

Safety

Reversing Sensor

Gap between floor and bottom of

door must not exceed 1/4" (6 mm).

Reversing Sensor

Safety

Reversing

Sensor

Gap between floor and

bottom of door must

Safety

Reversing

Sensor

not exceed 1/4" (6 mm).

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Carton Inventory

Your garage door opener is packaged in two cartons

which contain the motor unit and all parts illustrated

below. Accessories will depend on the model purchased.

If anything is missing, carefully check the packing

material. Parts may be stuck in the foam. Hardware for

installation is also listed below.

Models 3245M, 3255M (1)

Model 3255-2M (2)

Sprocket Cover

LOCK

LIGHT

Remote Control

Visor Clip

SECURITY✚^®

Single-Button Remote Control

Multi-Function

Door Control Panel

Chain

Styrofoam

2 Conductor Bell Wire

White & White/Red

Motor Unit with Light Lens

One-Piece

Rail

NT ON

MOU

CEILIN

Curved Door

Arm Section

Header Bracket

Trolley

Chain

Pulley Bracket

Door Bracket

Safety Labels

and

Literature

The Protector System^®

Straight Door

Arm Section

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with 2-Conductor White & White/Black

Bell Wire attached

Safety Sensor

Bracket (2)

INSTALLATION HARDWARE

Insulated Staples (30)

Ring Fastener (3)

Drywall Anchors (2)

Rail Grease

Hex Bolt 5/16"-18x7/8" (4)

Lag Screw 5/16"-9x1-5/8" (2)

Lag Screw 5/16"-18x1-7/8" (2)

Clevis Pin 5/16"x2-3/4" (1)

Clevis Pin 5/16"x1-1/4" (1)

Clevis Pin 5/16"x1" (1)

Carriage Bolt 1/4"-20x1/2" (2)

Wing Nut 1/4"-20 (2)

Rope

Nut 5/16"-18 (4)

Handle

Lock Washer 5/16" (4)

Screw 6ABx1-1/4" (2)

Screw 6-32x1" (2)

Self-Threading Screw 1/4"-14x5/8" (2)

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ASSEMBLY STEP 1

Attach the Rail to the Motor Unit

To avoid SERIOUS damage to garage door opener, use ONLY

those bolts/fasteners mounted in the top of the opener.

To avoid installation difficulties, do not run the garage

door opener until instructed to do so.

• Remove the two washered bolts mounted in top of

motor unit.

• Position rail at a 45˚ angle to opener so one hole in rail

and motor unit line up.

USE ONLY THIS

TYPE AND SIZE

BOLT

Washered Bolt

5/16"-18x1/2"

• Thread one of the washered bolts part way in.

Use only these bolts! Use of any other bolts will cause

serious damage to door opener.

Styrofoam

Rail

Hole

• Align rail and styrofoam over sprocket. Cut tape from

rail, chain and styrofoam.

• REMOVE STYROFOAM.

ASSEMBLY STEP 2

Attach the Chain to the Sprocket and

Install the Sprocket Cover

To avoid possible SERIOUS INJURY to fingers from moving

garage door opener:

• ALWAYS keep hand clear of sprocket while operating opener.

• Securely attach sprocket cover BEFORE operating.

• Position chain over the sprocket. If necessary, loosen

the outer nut on the trolley to obtain more chain slack.

• Insert the second washered bolt. CAUTION: Use only

the bolt previously removed from motor unit!

Washered Bolts

5/16"-18x1/2"

• Tighten both bolts securely through the rail into the

motor unit as shown.

Sprocket

• Install the sprocket cover: Insert the back tab in the

slot. Squeeze the cover slightly and insert the front tab

in the slot on the mounting plate.

USE ONLY THIS

TYPE AND SIZE

BOLT

Sprocket Cover

Back Tab Slot

Front Tab Slot

Mounting

Plate

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Figure 1

ASSEMBLY STEP 3

Tighten the Chain

Lock

Washer

Outer Nut

Inner Nut

To Tighten Outer Nut

• Spin the inner nut and lock washer down the trolley

threaded shaft, away from the trolley.

To Tighten Inner Nut

• To tighten the chain, turn outer nut in the direction

shown (Figure 1).

• When the chain is approximately 1/2" (13 mm) above

the base of the rail at its midpoint, re-tighten the inner

nut to secure the adjustment.

Trolley

Figure 2

Sprocket noise can result if chain is too loose.

Chain

When installation is complete, you may notice some chain

droop with the door closed. This is normal. If the chain

returns to the position shown in Figure 2 when the door is

open, do not re-adjust the chain.

1/2" (13 mm)

NOTE: During future maintenance, ALWAYS pull the

emergency release handle to disconnect trolley before

adjusting chain. You may notice loosening of chain after

Adjustment Step 3 (Test the Safety Reversal System).

Check for proper tension and readjust chain if necessary.

Then repeat Adjustment Step 3.

Base of Rail

Mid Length of Rail

You have now finished assembling your garage door

opener. Please read the following warnings before

proceeding to the installation section.

INSTALLATION

IMPORTANT INSTALLATION INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND

INSTRUCTIONS.

2. Install garage door opener ONLY on properly balanced and

lubricated garage door. An improperly balanced door may

NOT reverse when required and could result in SEVERE

INJURY or DEATH.

3. ALL repairs to cables, spring assemblies and other hardware

MUST be made by a trained door systems technician BEFORE

installing opener.

4. Disable ALL locks and remove ALL ropes connected to garage

door BEFORE installing opener to avoid entanglement.

5. Install garage door opener 7 feet (2.13 m) or more above

floor.

6. Mount emergency release handle 6 feet (1.83 m) above floor.

7. NEVER connect garage door opener to power source until

instructed to do so.

8. NEVER wear watches, rings or loose clothing while installing

or servicing opener. They could be caught in garage door or

opener mechanisms.

9. Install wall-mounted garage door control:

• within sight of the garage door.

• out of reach of children at minimum height of

5 feet (1.5 m).

• away from ALL moving parts of the door.

10. Place entrapment warning label on wall next to garage door

control.

11. Place manual release/safety reverse test label in plain view

on inside of garage door.

12. Upon completion of installation, test safety reversal system.

Door MUST reverse on contact with a 1-1/2" (3.8 cm) high

object (or a 2x4 laid flat) on the floor.

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Unfinished

Ceiling

INSTALLATION STEP 1

Determine the Header Bracket

Location

OPTIONAL

CEILING

MOUNT

FOR

HEADER

BRACKET

Header Wall

2x4

Vertical Centerline

of Garage Door

To prevent possible SERIOUS INJURY or DEATH:

2x4

• Header bracket MUST be RIGIDLY fastened to structural

support on header wall or ceiling, otherwise garage door

might NOT reverse when required. DO NOT install header

bracket over drywall.

Structural

Supports

• Concrete anchors MUST be used if mounting header bracket

or 2x4 into masonry.

• NEVER try to loosen, move or adjust garage door, springs,

cables, pulleys, brackets, or their hardware, ALL of which

are under EXTREME tension.

Level

(optional)

• ALWAYS call a trained door systems technician if garage

door binds, sticks, or is out of balance. An unbalanced

garage door might NOT reverse when required.

Installation procedures vary according to garage door

types. Follow the instructions which apply to your door.

1. Close the door and mark the inside vertical centerline of

the garage door.

2. Extend the line onto the header wall above the door.

You can fasten the header bracket within 4 feet

(1.22 m) of the left or right of the door center only if

a torsion spring or center bearing plate is in the

way; or you can attach it to the ceiling (see page 9)

when clearance is minimal. (It may be mounted on

the wall upside down if necessary, to gain

approximately 1/2" (1 cm).)

Header Wall

2" (5 cm)

Header Wall

Track

2" (5 cm)

Highest Point

of Travel

Highest Point

of Travel

Door

If you need to install the header bracket on a 2x4

(on wall or ceiling), use lag screws (not provided)

to securely fasten the 2x4 to structural supports as

shown here and on page 9.

Door

3. Open your door to the highest point of travel as shown.

Draw an intersecting horizontal line on the header wall

above the high point:

One-piece door with horizontal track

Sectional door with curved track

• 2" (5 cm) above the high point for sectional door and

one-piece door with track.

• 8" (20 cm) above the high point for one-piece door

without track.

Header Wall

8" (20 cm)

This height will provide travel clearance for the top

edge of the door.

Header Wall

8" (20 cm)

NOTE: If the total number of inches exceeds the height

available in your garage, use the maximum height

possible, or refer to page 9 for ceiling installation.

Highest

Point

of Travel

Highest

Door

Point

of Travel

Door

Jamb

Hardware

Pivot

One-piece door without track:

pivot hardware

One-piece door without track:

jamb hardware

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INSTALLATION STEP 2

Install the Header Bracket

Wall Mounting Holes

You can attach the header bracket either to the wall

above the garage door, or to the ceiling. Follow the

instructions which will work best for your particular

requirements. DO NOT install the header bracket over

drywall. If installing into masonry, use concrete

anchors (not provided).

CEILING MOUNT ONLY

The nail hole is for positioning

only. You must use lag screws to

mount the header bracket.

WALL HEADER BRACKET INSTALLATION

Optional

Wall Mounting Holes

• Center the bracket on the vertical centerline with the

bottom edge of the bracket on the horizontal line as

shown (with the arrow pointing toward the ceiling).

Vertical

Centerline of

Garage Door

• Mark the vertical set of bracket holes (do not use the

holes designated for ceiling mount). Drill 3/16" pilot

holes and fasten the bracket securely to a structural

support with the hardware provided.

Header Wall

Lag Screws

5/16"-9x1-5/8"

Header

Bracket

2x4

Structural

Support

Door Spring

HARDWARE SHOWN ACTUAL SIZE

Horizontal

Line

Garage Door

Highest Point of

Garage Door Travel

Vertical

Centerline of

Garage Door

Lag Screw

5/16"-9x1-5/8"

CEILING HEADER BRACKET INSTALLATION

• Extend the vertical centerline onto the ceiling as shown.

• Center the bracket on the vertical mark, no more than

6" (15 cm) from the wall. Make sure the arrow is

pointing toward the wall. The bracket can be mounted

flush against the ceiling when clearance is minimal.

– Finished Ceiling –

Vertical

• Mark the side holes. Drill 3/16" pilot holes and fasten

bracket securely to a structural support with the

hardware provided.

Centerline of

Garage Door

Header

Bracket

6" (15 cm)

Maximum

Door

Spring

Lag Screws

5/16"-9x1-5/8"

Ceiling Mounting Holes

CEILING MOUNT ONLY

– Header Wall –

The nail hole is for positioning

only. You must use lag screws

to mount the header bracket.

Garage Door

Vertical

Centerline of

Garage Door

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INSTALLATION STEP 3

Attach the Rail to the Header Bracket

• Position the opener on the garage floor below the

header bracket. Use packing material as a protective

base. NOTE: If the door spring is in the way you’ll need

help. Have someone hold the opener securely on a

temporary support to allow the rail to clear the spring.

Header Wall

Header Bracket

• Position the rail bracket against the header bracket.

• Align the bracket holes and join with a clevis pin

as shown.

Chain Pulley

Bracket

• Insert a ring fastener to secure.

Ring Fastener

Rail

Header Bracket

Clevis Pin

5/16"x2-3/4"

Chain

Pulley

Bracket

Rail

Garage

Door

Temporary

Support

HARDWARE SHOWN ACTUAL SIZE

Clevis Pin

5/16"x2-3/4"

Ring Fastener

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INSTALLATION STEP 4

Position the Opener

To prevent damage to garage door, rest garage door opener

rail on 2x4 placed on top section of door.

Follow instructions which apply to your door type as

illustrated.

SECTIONAL DOOR OR ONE-PIECE DOOR WITH

TRACK

A 2x4 laid flat is convenient for setting an ideal

door-to-rail distance.

Rail

• Remove foam packaging.

• Raise the opener onto a stepladder. You will need help

at this point if the ladder is not tall enough.

• Open the door all the way and place a 2x4 laid flat on

the top section beneath the rail.

2x4 is used to determine

the correct mounting height

from ceiling.

Door

• If the top section or panel hits the trolley when you

raise the door, pull down on the trolley release arm to

disconnect inner and outer sections. Slide the outer

trolley toward the motor unit. The trolley can remain

disconnected until Installation Step 12 is completed.

Trolley

Release Arm

ENGAGED

RELEASED

ONE-PIECE DOOR WITHOUT TRACK

A 2x4 on its side is convenient for setting an ideal

door-to-rail distance.

Header

Bracket

• Remove foam packaging.

• Raise the opener onto a stepladder. You will need help

at this point if the ladder is not tall enough.

Top of Door

• Open the door all the way and place a 2x4 on its side

on the top section of the door beneath the rail.

2x4 is used to determine

the correct mounting height

from ceiling.

• The top of the door should be level with the top of the

motor unit. Do not position the opener more than 4"

(10 cm) above this point.

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INSTALLATION STEP 5

Hang the Opener

To avoid possible SERIOUS INJURY from a falling garage door

opener, fasten it SECURELY to structural supports of the

garage. Concrete anchors MUST be used if installing ANY

brackets into masonry.

Three representative installations are shown. Yours may

be different. Hanging brackets should be angled (Figure 1)

to provide rigid support. On finished ceilings (Figure 2 and

Figure 3), attach a sturdy metal bracket to structural

supports before installing the opener. This bracket and

fastening hardware are not provided.

Figure 1

Structural

Supports

1. Measure the distance from each side of the motor unit

to the structural support.

2. Cut both pieces of the hanging bracket to required

lengths.

Lag Screws

Measure

5/16"-18x1-7/8"

Distance

3. Drill 3/16" pilot holes in the structural supports.

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

4. Attach one end of each bracket to a support with

5/16"-18x1-7/8" lag screws.

5. Fasten the opener to the hanging brackets with

5/16"-18x7/8" hex bolts, lock washers and nuts.

6. Check to make sure the rail is centered over the door

(or in line with the header bracket if the bracket is not

centered above the door).

Figure 2

7. Remove the 2x4. Operate the door manually. If the door

hits the rail, raise the header bracket.

Hidden

Support

Bracket

(Not Provided)

8. Grease the top and underside of the rail surface where

the trolley slides with rail grease.

FINISHED CEILING

Lag Screws

5/16"-18x1-7/8"

NOTE: DO NOT connect power to opener at this time.

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

HARDWARE SHOWN ACTUAL SIZE

Lag Screw 5/16"-18x1-7/8"

Figure 3

Lag Screws

5/16"-18x1-7/8"

FINISHED CEILING

Hex Bolt

5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

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INSTALLATION STEP 6

Install the Door Control

To prevent possible SERIOUS INJURY or DEATH from

electrocution:

• Be sure power is NOT connected BEFORE installing door

control.

• Connect ONLY to 24 VOLT low voltage wires.

To prevent possible SERIOUS INJURY or DEATH from a closing

garage door:

• Install door control within sight of garage door, out of reach

of children at a minimum height of 5 feet (1.5 m), and away

from ALL moving parts of door.

• NEVER permit children to operate or play with door control

push buttons or remote control transmitters.

• Activate door ONLY when it can be seen clearly, is properly

adjusted, and there are no obstructions to door travel.

• ALWAYS keep garage door in sight until completely closed.

NEVER permit anyone to cross path of closing garage door.

Locate door control within sight of door at a minimum

height of 5 feet (1.5 m) where small children cannot reach,

and away from moving parts of door and door hardware.

The installation surface must be smooth and flat. If

installing into drywall (Figure 1), drill 5/32" holes and use

anchors provided. For pre-wired installations (as in new

home construction), it may be mounted to a single gang

box (Figure 2). NOTE: After installation, a green or amber

indicator light behind the cover will indicate proper

connection. If not lit, the Lock and Light features will not

function (reverse wires to correct).

1. Strip 7/16" (11 mm) of insulation from one end of bell

wire and connect to the two screw terminals on back of

door control by color: white wire to WHT and white/red

wire to the RED (Figure 3).

2. Remove cover by gently prying at slot in the side of the

cover with a small flat head screwdriver (Figure 4).

Fasten with 6ABx1-1/4" self-tapping screws (drywall

installation) or 6-32x1" machine screws (into gang box)

as follows:

HARDWARE SHOWN ACTUAL SIZE

• Drill and install bottom screw, allowing 1/8" (3 mm) to

protrude above wall surface.

• Position bottom of door control on screw head and

slide down to secure. Adjust screw for snug fit.

• Install top screw with care to avoid cracking plastic

housing. DO NOT overtighten.

Screw 6ABx1-1/4"

Insulated Staples

Drywall Anchors

(standard installation)

Screw 6-32x1"(pre-wired)

STANDARD

INSTALLATION

• Insert bottom tabs and snap on cover.

Figure 1

Figure 2 PRE-WIRED INSTALLATION

NOTE: The push bar may stick if the door control is not

mounted on a smooth surface. If a click is not heard

when pressing the push bar, loosen the two mounting

screws or relocate the door control to a smoother

surface.

3. (Standard installation only) Run bell wire up wall and

across ceiling to motor unit. Use insulated staples to

secure wire in several places. Do not pierce wire with a

staple, creating a short or open circuit.

LOCK

LIGHT

LOCK

LIGHT

24 Volt

To Replace

Insert Bottom Tabs First

To Replace

Bell Wire

Insert Bottom Tabs First

4. Strip 7/16" (11 mm) of insulation from end of bell wire.

Connect bell wire to the quick-connect terminals as

follows: white to white and white/red to red (Figure 5).

NOTE: When connecting multiple door controls to the

opener, twist same color wires together. Insert wires into

quick-connect holes: white to white and red/white to red.

MULTI-FUNCTION

DOOR CONTROL (BACK)

REMOVE COVER

Figure 3

Figure 4

Slot

Top Mounting Hole

Terminal

Screws

5. Use tacks or staples to permanently attach entrapment

warning label to wall near door control, and manual

release/safety reverse test label in a prominent location

on inside of garage door.

LOCK

LIGHT

Bell Wire

Bottom Mounting Hole

NOTE: DO NOT connect power and operate opener at

this time. The trolley will travel to the full open position but

will not return to the close position until the sensor beam

is connected and properly aligned.

Door Control

Connections

To release or insert wire,

push in tab with screwdriver tip

Figure 5

White

Red

Grey

7/16" (11 mm)

Strip wire 7/16" (11 mm)

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INSTALLATION STEP 7

Install the Light

To prevent possible OVERHEATING of the endpanel or light

socket:

• Press the release tabs on both sides of lens. Gently

rotate lens back and downward until the lens hinge is in

the fully open position. Do not remove the lens.

• DO NOT use short neck or specialty light bulbs.

• DO NOT use halogen bulbs. Use ONLY incandescent.

To prevent damage to the opener:

• Install a 100 watt maximum light bulb in each socket.

Light bulb size should be A19, standard neck only. The

lights will turn ON and remain lit for approximately 4-1/2

minutes when power is connected. Then the lights will

turn OFF.

• DO NOT use bulbs larger than 100W.

• ONLY use A19 size bulbs.

• Reverse the procedure to close the lens.

100 Watt (Max)

Standard Light Bulb

• Use A19, standard neck garage door opener bulbs for

replacement.

NOTE: Use only standard light bulbs. The use of short

neck or speciality light bulbs may overheat the endpanel

or light socket.

Release Tab

Lens Hinge

INSTALLATION STEP 8

Attach the Emergency Release Rope

and Handle

To prevent possible SERIOUS INJURY or DEATH from a falling

garage door:

• If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Weak or broken

springs or unbalanced door could result in an open door

falling rapidly and/or unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• Thread one end of the rope through the hole in the top

of the red handle so “NOTICE” reads right side up as

shown. Secure with an overhand knot at least 1"

(2.5 cm) from the end of the rope to prevent slipping.

• Thread the other end of the rope through the hole in the

release arm of the outer trolley.

• NEVER use handle to pull door open or closed. If rope knot

becomes untied, you could fall.

• Adjust rope length so the handle is 6 feet (1.83 m)

above the floor. Ensure that the rope and handle clear

the tops of all vehicles to avoid entanglement. Secure

with an overhand knot.

NOTE: If it is necessary to cut the rope, heat seal the cut

end with a match or lighter to prevent unraveling.

Overhand Knot

Trolley

Release Arm

Trolley

Rope

NOTICE

Emergency Release Handle

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INSTALLATION STEP 9

Electrical Requirements

To prevent possible SERIOUS INJURY or DEATH from

electrocution or fire:

• Be sure power is NOT connected to the opener, and

disconnect power to circuit BEFORE removing cover to

establish permanent wiring connection.

• Garage door installation and wiring MUST be in compliance

with ALL local electrical and building codes.

• NEVER use an extension cord, 2-wire adapter, or change

plug in ANY way to make it fit outlet. Be sure the opener is

grounded.

To avoid installation difficulties, do not run the opener

at this time.

To reduce the risk of electric shock, your garage door

opener has a grounding type plug with a third grounding

pin. This plug will only fit into a grounding type outlet. If

the plug doesn’t fit into the outlet you have, contact a

qualified electrician to install the proper outlet.

PERMANENT WIRING

CONNECTION

RIGHT

WRONG

If permanent wiring is required by your local code,

refer to the following procedure.

Ground Tab

Green

Ground Screw

To make a permanent connection through the 7/8" hole in

the top of the motor unit:

Black

Wire

• Remove the motor unit cover screws and set the cover

aside.

Ground Wire

• Remove the attached 3-prong cord.

• Connect the black (line) wire to the screw on the brass

terminal; the white (neutral) wire to the screw on the

silver terminal; and the ground wire to the green ground

screw. The opener must be grounded.

Black Wire

White Wire

• Reinstall the cover.

To avoid installation difficulties, do not run the opener

at this time.

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INSTALLATION STEP 10

Install The Protector System

Be sure power is NOT connected to the garage door opener

BEFORE installing the safety reversing sensor.

To prevent SERIOUS INJURY or DEATH from a closing garage

door:

The safety reversing sensor must be connected and

aligned correctly before the garage door opener will

move in the down direction.

• Correctly connect and align the safety reversing sensor. This

required safety device MUST NOT be disabled.

• Install the safety reversing sensor so beam is NO HIGHER

than 6" (15 cm) above garage floor.

IMPORTANT INFORMATION ABOUT

THE SAFETY REVERSING SENSOR

When properly connected and aligned, the sensor will

detect an obstacle in the path of its electronic beam. The

sending eye (with an amber indicator light) transmits an

invisible light beam to the receiving eye (with a green

indicator light). If an obstruction breaks the light beam

while the door is closing, the door will stop and reverse to

full open position, and the opener lights will flash 10

times.

If it is necessary to mount the units on the wall, the

brackets must be securely fastened to a solid surface

such as the wall framing. Extension brackets (see

Accessories) are available if needed. If installing in

masonry construction, add a piece of wood at each

location to avoid drilling extra holes in masonry if

repositioning is necessary.

The units must be installed inside the garage so that the

sending and receiving eyes face each other across the

door, no more than 6" (15 cm) above the floor. Either can

be installed on the left or right of the door as long as the

sun never shines directly into the receiving eye lens.

The invisible light beam path must be unobstructed. No

part of the garage door (or door tracks, springs, hinges,

The mounting brackets are designed to clip onto the track rollers or other hardware) may interrupt the beam while

of sectional garage doors without additional hardware.

the door is closing.

Safety Reversing Sensor

Invisible Light Beam

6" (15 cm) max. above floor

Protection Area

Safety Reversing Sensor

6" (15 cm) max. above floor

Facing the door from inside the garage

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INSTALLING THE BRACKETS

DOOR TRACK MOUNT (RIGHT SIDE)

Figure 1

Be sure power to the opener is disconnected. Install

and align the brackets so the sensors will face each other

across the garage door, with the beam no higher than 6"

(15 cm) above the floor. They may be installed in one of

three ways, as follows.

Door

Track

Lip

Indicator

Light

Garage door track installation (preferred):

• Slip the curved arms over the rounded edge of each

door track, with the curved arms facing the door. Snap

into place against the side of the track. It should lie

flush, with the lip hugging the back edge of the track,

as shown in Figure 1.

Safety

Reversing

Sensor

Bracket

Lens

If your door track will not support the bracket securely,

wall installation is recommended.

Figure 2

WALL MOUNT (RIGHT SIDE)

Wall installation (Figure 2 & 3):

Inside

Garage

Wall

• Place the bracket against the wall with curved arms

facing the door. Be sure there is enough clearance for

the sensor beam to be unobstructed.

Fasten Wood Block to Wall with

Lag Screws (not provided)

Indicator

Light

Safety

Reversing

Sensor

• If additional depth is needed, an extension bracket (see

Accessories) or wood blocks can be used.

Bracket

• Use bracket mounting holes as a template to locate

and drill (2) 3/16" diameter pilot holes on the wall at

each side of the door, no higher than 6" (15 cm) above

the floor.

Lag Screws

(not provided)

Lens

• Attach brackets to wall with lag screws (not provided).

• If using extension brackets or wood blocks, adjust right

and left assemblies to the same distance out from the

mounting surface. Make sure all door hardware

obstructions are cleared.

Figure 3

WALL MOUNT (RIGHT SIDE)

Inside

Garage

Wall

Extension Bracket

(See Accessories)

Floor installation (Figure 4):

(Provided with

Extension Bracket)

• Use wood blocks or extension brackets (see

Accessories) to elevate sensor brackets so the lenses

will be no higher than 6" (15 cm) above the floor.

• Carefully measure and place right and left assemblies

at the same distance out from the wall. Be sure all door

hardware obstructions are cleared.

• Fasten to the floor with concrete anchors as shown.

Safety

Reversing

Sensor

Bracket

(Provided with

Extension Bracket)

Indicator

Light

Lens

Figure 4

FLOOR MOUNT (RIGHT SIDE)

HARDWARE SHOWN ACTUAL SIZE

Attach with

Inside

Garage

Wall

Concrete Anchors

(not provided)

Lens

Indicator

Light

Wing Nut

1/4"-20

Staples

Carriage Bolt

1/4"-20x1/2"

Safety

Reversing

Sensor

Bracket

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MOUNTING AND WIRING THE SAFETY REVERSING

SENSORS

Figure 5

Wing Nut

1/4"-20

• Slide a 1/4"-20x1/2" carriage bolt head into the slot on

each sensor. Use wing nuts to fasten sensors to

brackets, with lenses pointing toward each other across

the door. Be sure the lens is not obstructed by a

bracket extension (Figure 5).

Carriage Bolt

1/4"-20x1/2"

Lens

• Finger tighten the wing nuts.

• Run the wires from both sensors to the opener. Use

insulated staples to secure wire to wall and ceiling.

TROUBLESHOOTING THE SAFETY REVERSING

SENSORS

• Strip 7/16" (11 mm) of insulation from each set of wires.

Separate white and white/black wires sufficiently to

connect to the opener quick-connect terminals. Twist

like colored wires together. Insert wires into quick-

connect holes: white to white and white/black to grey

(Figure 6).

1. If the sending eye indicator light does not glow steadily

after installation, check for:

• Electric power to the opener.

• A short in the white or white/black wires. These can

occur at staples, or at opener connections.

ALIGNING THE SAFETY REVERSING SENSORS

• Incorrect wiring between sensors and opener.

• A broken wire.

• Plug in the opener. The indicator lights in both the

sending and receiving eyes will glow steadily if wiring

connections and alignment are correct.

2. If the sending eye indicator light glows steadily but the

receiving eye indicator light doesn’t:

The sending eye amber indicator light will glow regardless

of alignment or obstruction. If the green indicator light in

the receiving eye is off, dim, or flickering (and the invisible

light beam path is not obstructed), alignment is required.

• Check alignment.

• Check for an open wire to the receiving eye.

3. If the receiving eye indicator light is dim, realign either

• Loosen the sending eye wing nut and readjust, aiming

directly at the receiving eye. Lock in place.

sensor.

NOTE: When the invisible beam path is obstructed or

misaligned while the door is closing, the door will reverse.

If the door is already open, it will not close. The opener

lights will blink 10 times. See page 16.

• Loosen the receiving eye wing nut and adjust sensor

until it receives the sender’s beam. When the green

indicator light glows steadily, tighten the wing nut.

Connect Wire to

Opener Quick-Connect Terminals

Figure 6

Finished

Ceiling

Bell Wire

1. Strip wire 7/16"

(11 mm)

Bell Wire

7/16" (11 mm)

2. Twist like colored

wires together

3. To release or insert

wire, push in tab with

screwdriver tip

Red

Grey

White

Quick-Connect Terminals

Safety Reversing Sensor

Invisible Light Beam

Protection Area

Safety Reversing Sensor

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INSTALLATION STEP 11

Fasten the Door Bracket

Fiberglass, aluminum or lightweight steel garage doors WILL

REQUIRE reinforcement BEFORE installation of door bracket.

Contact your door manufacturer for reinforcement kit.

Follow instructions which apply to your door type as

illustrated below or on the following page.

A horizontal reinforcement brace should be long

enough to be secured to two or three vertical

supports. A vertical reinforcement brace should cover

the height of the top panel.

Header

Bracket

Figure 1 shows one piece of angle iron as the horizontal

brace. For the vertical brace, 2 pieces of angle iron are

used to create a U-shaped support. The best solution is

to check with your garage door manufacturer for an

opener installation door reinforcement kit.

NOTE: Many door reinforcement kits provide for direct

attachment of the clevis pin and door arm. In this case

you will not need the door bracket; proceed to Step 12.

Door

Bracket

Location

HORIZONTAL AND VERTICAL

REINFORCEMENT IS NEEDED FOR

LIGHTWEIGHT GARAGE DOORS

(FIBERGLASS, ALUMINUM, STEEL,

DOORS WITH GLASS PANEL, ETC).

SECTIONAL DOORS

1. Center the door bracket on the previously marked

vertical centerline used for the header bracket

installation. Note correct UP placement, as stamped

inside the bracket.

Vertical

Centerline

(NOT PROVIDED)

Figure 1

2. Position the top edge of the bracket 2"-4" (5-10 cm)

below the top edge of the door, OR directly below any

structural support across the top of the door.

Vertical

Reinforcement

3. Mark, drill holes and install as follows, depending on

your door’s construction:

Vertical

Reinforcement

Centerline

of Garage Door

Metal or light weight doors using a vertical angle iron

brace between the door panel support and the door

bracket:

Vertical

Bolt

Centerline

of Garage Door

5/16"-18x2"

(Not Provided)

• Drill 3/16" fastening holes. Secure the door bracket

using the two 1/4"-14x5/8" self-threading screws

(Figure 2A).

Door

Bracket

Lock Washer

5/16"

Door

Nut

• Alternately, use two 5/16" bolts, lock washers and nuts

(not provided) (Figure 2B).

Bracket

5/16"-18

Self-Threading

Screw 1/4"-14x5/8"

Figure 2B

Metal, insulated or light weight factory reinforced

doors:

Figure 2A

• Drill 3/16" fastening holes. Secure the door bracket

using the self-threading screws (Figure 3).

Inside Edge

of Door or

Bolt

Reinforcement Board

Wood Doors:

5/16"x2"

(Not

• Use top and bottom or side to side door bracket holes.

Drill 5/16" holes through the door and secure bracket

with 5/16"x2" carriage bolts, lock washers and nuts (not

provided) (Figure 4).

Provided)

Vertical

Centerline

Vertical

Centerline

of Garage

Door

NOTE: The 1/4"-14x5/8"

self-threading screws are not

intended for use on wood doors.

of Garage Door

HARDWARE

SHOWN

ACTUAL SIZE

Self-Threading

Screw

1/4"-14x5/8"

Self-Threading

Figure 4

Screw

1/4"-14x5/8"

Figure 3

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ONE-PIECE DOORS

Please read and comply with the warnings and

reinforcement instructions on the previous page. They

apply to one-piece doors also.

• Center the door bracket on the top of the door, in line

with the header bracket as shown. Mark either the left

and right, or the top and bottom holes.

• Metal Doors: Drill 3/16" pilot holes and fasten the

bracket with the 1/4"-14x5/8" self-threading screws

provided.

HARDWARE SHOWN

ACTUAL SIZE

• Wood Doors: Drill 5/16" holes and use 5/16"x2"

carriage bolts, lock washers and nuts (not provided) or

5/16"x1-1/2" lag screws (not provided) depending on

your installation needs.

Self-Threading Screw

1/4"-14x5/8"

NOTE: The door bracket may be installed on the top edge

of the door if required for your installation. (Refer to the

dotted line optional placement drawing.)

Self-Threading

Screw

1/4"-14x5/8"

Door

Bracket

Top of Door

(Inside

Garage)

Header Wall

Finished Ceiling

2x4 Support

Top Edge

of Door

Header

Bracket

Optional

Placement

Door

Bracket

METAL DOOR

Optional

HORIZONTAL AND VERTICAL

Placement

REINFORCEMENT IS NEEDED FOR

of Door

Nut

5/16"-18

Lock

Washer

5/16"

LIGHTWEIGHT GARAGE DOORS

Bracket

(FIBERGLASS, ALUMINUM, STEEL,

DOORS WITH GLASS PANEL, ETC.).

(NOT PROVIDED)

Top of Door

Door

Bracket

Vertical

Centerline of

Garage Door

(Inside

Garage)

Top Edge

of Door

Optional

Placement

Carriage Bolt

5/16"x2"

(Not Provided)

WOOD DOOR

For a door with no exposed framing,

or for the optional installation, use

lag screws 5/16"x1-1/2" (Not Provided)

to fasten door bracket.

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Figure 1

Inner Trolley

INSTALLATION STEP 12

Connect Door Arm to Trolley

Outer Trolley

Follow instructions which apply to your door type as

illustrated below and on the following page.

Clevis Pin

5/16"x1"

SECTIONAL DOORS ONLY

Ring

Fastener

Make sure garage door is fully closed. Pull the emergency

release handle to disconnect the outer trolley from the

inner trolley. Slide the outer trolley back (away from the

door) about 2" (5 cm) as shown in Figures 1, 2 and 3.

Emergency

Release

Handle

Figure 1:

Door

Bracket

Straight

Door Arm

• Fasten straight door arm section to outer trolley with the

5/16"x1" clevis pin. Secure the connection with a ring

fastener.

Curved

Door Arm

Clevis Pin

5/16"x1-1/4"

• Fasten curved section to the door bracket in the same

way, using the 5/16"x1-1/4" clevis pin.

IMPORTANT: The groove on the straight door arm MUST

face away from the curved door arm (Figure 4).

Figure 2

Figure 2:

• Bring arm sections together. Find two pairs of holes that

line up and join sections. Select holes as far apart as

possible to increase door arm rigidity.

Lock

Washers

5/16"

Figure 3, Hole alignment alternative:

• If holes in curved arm are above holes in straight arm,

disconnect straight arm. Cut about 6" (15 cm) from the

solid end. Reconnect to trolley with cut end down as

shown.

Nuts

5/16"-18

Bolts

5/16"-18x7/8"

• Bring arm sections together.

Door Bracket

• Find two pairs of holes that line up and join with bolts,

lock washers and nuts.

Pull the emergency release handle toward the opener at a

45° angle so that the trolley release arm is horizontal.

Proceed to Adjustment Step 1, page 23. Trolley will

re-engage automatically when opener is operated.

Figure 3

Lock

Washers

5/16"

HARDWARE SHOWN ACTUAL SIZE

Nuts

5/16"-18

Ring Fastener

Bolts

5/16"-18x7/8"

Nut 5/16"-18

Lock Washer 5/16"

Clevis Pin

Cut This End

Hex Bolt

5/16"-18x7/8"

Clevis Pin

5/16"x1" (Trolley)

5/16"x1-1/4" (Door Bracket)

CORRECT

INCORRECT

Figure 4

Straight

Door Arm

Straight

Door Arm

Curved

Door

Arm

Curved

Door

Arm

(Groove

facing out)

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Figure 5

ALL ONE-PIECE DOORS

Door

Bracket

Ring

1. Assemble the door arm, Figure 5:

Fastener

Nuts

5/16"-18

IMPORTANT: The groove on the straight door arm MUST

face away from the curved door arm (Figure 5).

Lock

Washers

5/16"

• Fasten the straight and curved door arm sections

together to the longest possible length (with a 2 or 3

hole overlap).

Clevis Pin

5/16"x1-1/4"

Straight

Arm

Bolts

5/16"-18x7/8

Curved

Door Arm

• With the door closed, connect the straight door arm

section to the door bracket with the 5/16"x1-1/4"

clevis pin.

CORRECT

INCORRECT

• Secure with a ring fastener.

Straight

Door Arm

Straight

Door Arm

2. Adjustment procedures, Figure 6:

Curved

Door

Arm

• On one-piece doors, before connecting the door arm

to the trolley, the travel limits must be adjusted. Limit

adjustment screws are located on the left side panel

as shown on page 23. Follow adjustment procedures

below.

Door

Arm

(Groove

facing out)

• Open door adjustment: decrease UP travel limit

- Manually close the door and lift the door arm to the

trolley. The arm should touch the trolley just ahead of

the door arm connector hole. Refer to the fully closed

trolley/door arm positions in the illustration. If the arm

is behind the connector hole, adjust the limit further.

One full turn equals 2" (5 cm) of trolley travel.

- Turn the UP limit adjustment screw counter-

clockwise 4 turns.

- Press the Door Control push button. The trolley will

travel to the fully open position.

- Manually raise the door to the open position (parallel

to the floor), and lift the door arm to the trolley. The

arm should touch the trolley just in back of the door

arm connector hole. Refer to the fully open trolley/

door arm positions in the illustration. If the arm does

not extend far enough, adjust the limit further. One

full turn equals 2" (5 cm) of trolley travel.

3. Connect the door arm to the trolley:

• Close the door and join the curved arm to the

connector hole in the trolley with the remaining clevis

pin. It may be necessary to lift the door slightly to

make the connection.

• Secure with a ring fastener.

• Closed door adjustment: decrease DOWN travel

limit

• Run the opener through a complete travel cycle. If the

door has a slight "backward" slant in full open position

as shown in the illustration, decrease the UP limit until

the door is parallel to the floor.

- Turn the DOWN limit adjustment screw clockwise

4 complete turns.

NOTE: When setting the up limit on the following page, the

door should not have a "backward" slant when fully open

as illustrated below. A slight backward slant will cause

unnecessary bucking and/or jerking operation as

the door is being opened or closed from the fully open

position.

- Press the Door Control push button. The trolley will

travel to the fully closed position.

Figure 5

Inner Trolley

Outer Trolley

Door Arm

Connector Hole

Door Arm

Emergency Release Handle

Closed

Door

Outer Trolley

Inner Trolley

Door Arm

Correct Angle

Door with

Backward Slant (Incorrect)

Open Door

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ADJUSTMENT STEP 1

Adjust the UP and DOWN Travel Limits

Without a properly installed safety reversal system, persons

(particularly small children) could be SERIOUSLY INJURED or

KILLED by a closing garage door.

Limit adjustment settings regulate the points at which the

door will stop when moving up or down.

• Incorrect adjustment of garage door travel limits will

interfere with proper operation of safety reversal system.

• If one control (force or travel limits) is adjusted, the other

control may also need adjustment.

• After ANY adjustments are made, the safety reversal system

MUST be tested. Door MUST reverse on contact with 1-1/2"

high (3.8 cm) object (or 2x4 laid flat) on floor.

To operate the opener, press the Door Control push bar.

Run the opener through a complete travel cycle.

• Does the door open and close completely?

• Does the door stay closed and not reverse

unintentionally when fully closed?

If your door passes both of these tests, no limit

adjustments are necessary unless the reversing test fails

(Adjustment Step 3, page 25).

Adjustment procedures are outlined below. Read the

procedures carefully before proceeding to Adjustment

Step 2. Use a screwdriver to make limit adjustments. Run

the opener through a complete travel cycle after each

adjustment.

To prevent damage to vehicles, be sure fully open door

provides adequate clearance.

NOTE: Repeated operation of the opener during

adjustment procedures may cause the motor to overheat

and shut off. Simply wait 15 minutes and try again. If

anything interferes with the door’s upward travel, it will

stop. If anything interferes with the door’s downward travel

(including binding or unbalanced doors), it will reverse.

Cover Protection

Bolt

2-4"

(5-10 cm)

HOW AND WHEN TO ADJUST THE LIMITS

• If the door does not open completely but opens at

least five feet (1.5 m):

Increase up travel. Turn the UP limit adjustment screw

clockwise. One turn equals 2" (5 cm) of travel.

Left Side Panel

Limit Adjustment Screws

NOTE: To prevent the trolley from hitting the cover

protection bolt, keep a minimum distance of 2-4"

(5 cm - 10 cm) between the trolley and the bolt.

• If door does not open at least 5 feet (1.5 m):

Adjustment Label

Adjust the UP (open) force as explained in Adjustment

Step 2.

• If the door does not close completely:

• If the door reverses when closing and there is no

visible interference to travel cycle:

Increase down travel. Turn the DOWN limit adjustment

screw counterclockwise. One turn equals 2" (5 cm) of

travel.

If the opener lights are flashing, the Safety Reversing

Sensors are either not installed, misaligned, or

obstructed. See Troubleshooting, page 18.

If door still won't close completely and the trolley

bumps into the pulley bracket (page 4), try lengthening

the door arm (page 21) and decreasing the down limit.

Test the door for binding: Pull the emergency release

handle. Manually open and close the door. If the door is

binding or unbalanced, call for a trained door systems

technician. If the door is balanced and not binding,

adjust the DOWN (close) force. See Adjustment Step 2.

• If the opener reverses in fully closed position:

Decrease down travel. Turn the DOWN limit adjustment

screw clockwise. One turn equals 2" (5 cm) of travel.

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ADJUSTMENT STEP 2

Adjust the Force

Without a properly installed safety reversal system, persons

(particularly small children) could be SERIOUSLY INJURED or

KILLED by a closing garage door.

• Too much force on garage door will interfere with proper

operation of safety reversal system.

• NEVER increase force beyond minimum amount required to

close garage door.

• NEVER use force adjustments to compensate for a binding

or sticking garage door.

Force adjustment controls are located on the back panel

of the motor unit. Force adjustment settings regulate the

amount of power required to open and close the door.

If the forces are set too light, door travel may be

interrupted by nuisance reversals in the down direction

and stops in the up direction. Weather conditions can

affect the door movement, so occasional adjustment may

be needed.

The maximum force adjustment range is about 3/4 of a

complete turn. Do not force controls beyond that point.

Turn force adjustment controls with a screwdriver.

• If one control (force or travel limits) is adjusted, the other

control may also need adjustment.

• After ANY adjustments are made, the safety reversal system

MUST be tested. Door MUST reverse on contact with 1-1/2"

high (3.8 cm) object (or 2x4 laid flat) on floor.

NOTE: If anything interferes with the door’s upward travel,

it will stop. If anything interferes with the door’s downward

travel (including binding or unbalanced doors), it will

reverse.

HOW AND WHEN TO ADJUST THE FORCES

1. Test the DOWN (close) force

Force

Adjustment

Controls

• Grasp the door bottom when the door is about

halfway through DOWN (close) travel. The door

should reverse. Reversal halfway through down travel

does not guarantee reversal on a 1-1/2" (3.8 cm)

obstruction. See Adjustment Step 3, page 25. If the

door is hard to hold or doesn’t reverse, DECREASE

the DOWN (close) force by turning the control

counterclockwise. Make small adjustments until the

door reverses normally. After each adjustment, run

the opener through a complete cycle.

Back Panel

• If the door reverses during the down (close) cycle

and the opener lights aren’t flashing, INCREASE

DOWN (close) force by turning the control clockwise.

Make small adjustments until the door completes a

close cycle. After each adjustment, run the opener

through a complete travel cycle. Do not increase the

force beyond the minimum amount required to close

the door.

Antenna

2. Test the UP (open) force

• Grasp the door bottom when the door is about

halfway through UP (open) travel. The door should

stop. If the door is hard to hold or doesn’t stop,

DECREASE UP (open) force by turning the control

counterclockwise. Make small adjustments until the

door stops easily and opens fully. After each

adjustment, run the opener through a complete travel

cycle.

FORCE ADJUSTMENT LABEL

• If the door doesn’t open at least 5 feet (1.5 m),

INCREASE UP (open) force by turning the control

clockwise. Make small adjustments until door opens

completely. Readjust the UP limit if necessary. After

each adjustment, run the opener through a complete

travel cycle.

Open Force

Close Force

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ADJUSTMENT STEP 3

Test the Safety Reversal System

Without a properly installed safety reversal system, persons

(particularly small children) could be SERIOUSLY INJURED or

KILLED by a closing garage door.

TEST

• With the door fully open, place a 1-1/2" (3.8 cm) board

(or a 2x4 laid flat) on the floor, centered under the

garage door.

• Safety reversal system MUST be tested every month.

• If one control (force or travel limits) is adjusted, the other

control may also need adjustment.

• Operate the door in the down direction. The door must

reverse on striking the obstruction.

• After ANY adjustments are made, the safety reversal system

MUST be tested. Door MUST reverse on contact with 1-1/2"

high (3.8 cm) object (or 2x4 laid flat) on the floor.

ADJUST

• If the door stops on the obstruction, it is not traveling

far enough in the down direction. Increase the DOWN

limit by turning the DOWN limit adjustment screw

counterclockwise 1/4 turn.

NOTE: On a sectional door, make sure limit adjustments

do not force the door arm beyond a straight up and

down position. See the illustration on page 21.

• Repeat the test.

• When the door reverses on the 1-1/2" (3.8 cm) board,

remove the obstruction and run the opener through 3 or

4 complete travel cycles to test adjustment.

• If the unit continues to fail the Safety Reverse Test, call

for a trained door systems technician.

IMPORTANT SAFETY CHECK:

Test the Safety Reverse System after:

• Each adjustment of door arm length, limits, or force

controls.

• Any repair to or adjustment of the garage door

(including springs and hardware).

1-1/2" (3.8 cm) board

(or a 2x4 laid flat)

• Any repair to or buckling of the garage floor.

• Any repair to or adjustment of the opener.

ADJUSTMENT STEP 4

Test The Protector System

Without a properly installed safety reversing sensor, persons

(particularly small children) could be SERIOUSLY INJURED or

KILLED by a closing garage door.

• Press the remote control push button to open the door.

• Place the opener carton in the path of the door.

• Press the remote control push button to close the door.

The door will not move more than an inch (2.5 cm), and

the opener lights will flash.

The garage door opener will not close from a remote if

the indicator light in either sensor is off (alerting you to the

fact that the sensor is misaligned or obstructed).

If the opener closes the door when the safety

reversing sensor is obstructed (and the sensors are

no more than 6" (15 cm) above the floor), call for a

trained door systems technician.

Safety Reversing Sensor

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OPERATION

IMPORTANT SAFETY INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.

9. If one control (force or travel limits) is adjusted, the other

control may also need adjustment.

2. ALWAYS keep remote controls out of reach of children.

NEVER permit children to operate or play with garage door

control push buttons or remote controls.

10. After ANY adjustments are made, the safety reversal system

MUST be tested.

3. ONLY activate garage door when it can be seen clearly, it is

properly adjusted, and there are no obstructions to door

travel.

4. ALWAYS keep garage door in sight until completely closed.

NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.

11. Safety reversal system MUST be tested every month. Garage

door MUST reverse on contact with 1-1/2" (3.8 cm) high

object (or a 2x4 laid flat) on the floor. Failure to adjust the

garage door opener properly may cause SEVERE INJURY or

DEATH.

12. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see

page 3). An improperly balanced door may NOT reverse

when required and could result in SEVERE INJURY or

DEATH.

13. ALL repairs to cables, spring assemblies and other hardware,

ALL of which are under EXTREME tension, MUST be made

by a trained door systems technician.

5. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY OPEN

DOOR.

6. If possible, use emergency release handle to disengage trolley

ONLY when garage door is CLOSED. Weak or broken springs

or unbalanced door could result in an open door falling rapidly

and/or unexpectedly, causing SEVERE INJURY or DEATH.

7. NEVER use emergency release handle unless garage doorway

is clear of persons and obstructions.

8. NEVER use handle to pull garage door open or closed. If rope

knot becomes untied, you could fall.

14. ALWAYS disconnect electric power to garage door opener

BEFORE making ANY repairs or removing covers.

15.

SAVE THESE INSTRUCTIONS.

Using Your Garage Door Opener

Your Security✚^®opener and hand-held remote control

have been factory-set to a matching code which changes

with each use, randomly accessing over 100 billion new

codes. Your opener will operate with up to eight

Security✚^®remote controls and one Security✚^®Keyless

Entry System. If you purchase a new remote, or if you

wish to deactivate any remote, follow the instructions in

the Programming section.

6. If obstructed while opening, the door will stop.

7. If fully open, the door will not close when the beam is

broken. The sensor has no effect in the opening cycle.

If the sensor is not installed, or is misaligned, the door

won’t close from a hand-held remote. However, you can

close the door with the Door Control, the Outside

Keylock, or Keyless Entry, if you activate them until down

travel is complete. If you release them too soon, the door

will reverse.

Activate your opener with any of the following:

• The hand-held Remote Control: Hold the large push

button down until the door starts to move.

• The wall-mounted Door Control: Hold the push button

or bar down until the door starts to move.

The opener lights will turn on under the following

conditions: when the opener is initially plugged in; when

power is restored after interruption; when the opener is

activated.

• The Keyless Entry (See Accessories): If provided with

your garage door opener, it must be programmed

before use. See Programming.

They will turn off automatically after 4-1/2 minutes or

provide constant light when the Light feature on the

Multi-Function Door Control is activated. Bulb size is A19.

Bulb power is 100 watts maximum.

Security✚^®light feature: Lights will also turn on when

someone walks through the open garage door. With a

Multi-Function Door Control, this feature may be turned

off as follows: With the opener lights off, press and hold

the light button for 10 seconds, until the light goes on,

then off again. To restore this feature, start with the

opener lights on, then press and hold the light button for

10 seconds until the light goes off, then on again.

When the opener is activated (with the safety

reversing sensor correctly installed and aligned)

1. If open, the door will close. If closed, it will open.

2. If closing, the door will reverse.

3. If opening, the door will stop.

4. If the door has been stopped in a partially open

position, it will close.

5. If obstructed while closing, the door will reverse. If the

obstruction interrupts the sensor beam, the opener

lights will blink for five seconds.

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Using the Wall-Mounted

Door Control

To Open the Door Manually

THE MULTI-FUNCTION DOOR CONTROL

To prevent possible SERIOUS INJURY or DEATH from a falling

garage door:

• If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Weak or broken

springs or unbalanced door could result in an open door

falling rapidly and/or unexpectedly.

• NEVER use emergency release handle unless garage doorway

is clear of persons and obstructions.

• NEVER use handle to pull door open or closed. If rope knot

becomes untied, you could fall.

Press the push button to open or close

the door. Press again to reverse the door

during the closing cycle or to stop the

door while it's opening.

Push

Button

Lock

Button

LOCK

Light

Button

LIGHT

Light feature

Press the Light button to turn the opener

light on or off. It will not control the opener lights when the

door is in motion. If you turn it on and then activate the

opener, the light will remain on for 4-1/2 minutes. Press

again to turn it off sooner. The 4-1/2 minute interval can

be changed to 1-1/2, 2-1/2, or 3-1/2 minutes as follows:

Press and hold the Lock button until the light blinks (about

10 seconds). A single blink indicates that the timer is reset

to 1-1/2 minutes. Repeat the procedure and the light will

blink twice, resetting the timer to 2-1/2 minutes. Repeat

again for a 3-1/2 minute interval, etc., up to a maximum of

four blinks and 4-1/2 minutes.

The door should be fully closed if

possible. Pull down on the

emergency release handle and lift

the door manually. To reconnect

the door to the opener, press the

Trolley

Release

Arm

Emergency

Release

Handle

(Pull Down)

door control push bar.

NOTICE

Lock feature

Designed to prevent operation of the door from hand-held

remote controls. However, the door will open and close

from the Door Control, the Outside Keylock and the

Keyless Entry Accessories.

MANUAL DISCONNECT

POSITION

The lockout feature prevents the

trolley from reconnecting

automatically. Pull the emergency

release handle down and back

(toward the opener). The door can

then be raised and lowered

manually as often as necessary.

To disengage the lockout feature,

pull the handle straight down. The

trolley will reconnect on the next

Trolley

Release

Arm

To activate, press and hold the Lock button for 2 seconds.

The push bar light will flash as long as the Lock feature is

on.

Emergency

To turn off, press and hold the Lock button again for

2 seconds. The push bar light will stop flashing. The Lock

feature will also turn off whenever the “learn” button on

the motor unit panel is activated.

Release Handle

(Down and Back)

NOTICE

LOCKOUT POSITION

UP or DOWN operation, either manually or by using the

door control or remote.

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CARE OF YOUR OPENER

THE REMOTE CONTROL BATTERY

LIMIT AND FORCE ADJUSTMENTS:

Weather conditions may cause some minor changes in

door operation requiring some

re-adjustments, particularly

during the first year of operation.

FORCE CONTROLS

To prevent possible SERIOUS INJURY or DEATH:

• NEVER allow small children near batteries.

• If battery is swallowed, immediately notify doctor.

To reduce risk of fire, explosion or chemical burn:

• Replace ONLY with 3V2032 coin batteries.

Pages 23 and 24 refer to the limit

and force adjustments. Only a

screwdriver is required. Follow

the instructions carefully.

• DO NOT recharge, disassemble, heat above 100° C (212° F)

or incinerate.

LIMIT CONTROLS

Repeat the safety reverse test

(Adjustment Step 3, page 25)

after any adjustment of limits

or force.

The lithium battery should

produce power for up to

5 years.

Battery

positive

side up (+)

To replace battery, use the visor

clip or screwdriver blade to pry

open the case as shown. Insert

battery positive side up (+).

MAINTENANCE SCHEDULE

Once a Month

• Manually operate door. If it is unbalanced or binding,

call a trained door systems technician.

Dispose of old battery properly.

Replace the battery with ONLY 3V2032 coin cell batteries.

• Check to be sure door opens and closes fully. Adjust

limits and/or force if necessary (see pages 23 and 24).

NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of this

receiver and/or transmitter are prohibited, except for changing the code setting or replacing the

battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the

following two conditions: (1) this device may not cause harmful interference, and (2) this device

must accept any interference received, including interference that may cause undesired operation.

• Repeat the safety reverse test. Make any necessary

adjustments (see Adjustment Step 3).

Twice a Year

• Check chain tension. Disconnect trolley first. Adjust if

necessary (see page 7).

Once a Year

• Oil door rollers, bearings and hinges. The opener does

not require additional lubrication. Do not grease the

door tracks.

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HAVING A PROBLEM?

1. My door will not close and the light bulbs blink on

my motor unit: The safety reversing sensor must be

connected and aligned correctly before the garage door

opener will move in the down direction.

Bell Wire

• Verify the safety sensors are properly installed,

aligned and free of any obstructions. Refer to

Installation Step 10: Install The Protector System .

• Check diagnostic LED for flashes on the motor unit

then refer to the Diagnostic Chart on the following

page.

"Learn"

Button

LED or

Diagnostic

LED

2. My remotes will not activate the door:

Safety Reversing Sensor

• Verify your door control is not blinking. If it is blinking,

deactivate the Lock Mode following the instructions

for Using the Wall-Mounted Door Control.

Receiving Eye Safety Reversing

Sensor (Green Indicator Light)

Sending Eye Safety Reversing

Sensor (Amber Indicator Light)

• Reprogram remotes following the programming

instructions. Refer to Programming.

• If remote will still not activate your door, check

diagnostic LED for flashes on motor unit then refer to

Diagnostic Chart on the following page.

3. My door reverses for no apparent reason: Repeat

safety reverse test after adjustments to force or travel

limits. The need for occasional adjustment for the force

and limit settings is normal. Weather conditions in

particular can affect door travel.

6. My motor unit hums briefly:

• First verify that the trolley is against the stop bolt.

• Release the door from the opener by pulling the

Emergency Release Rope.

• Manually bring the door to a closed position.

• Manually check door for balance or any binding

problems.

• Loosen the chain by adjusting the outer nut 4 to 5

turns. This relieves the tension.

• Refer to Adjustment Step 2, Adjust the Force.

• Run the motor unit from the remote control or door

control. The trolley should travel towards the door

and stop. If the trolley re-engages with the door, pull

the Emergency Release Rope to disengage.

4. My door reverses for no apparent reason after fully

closing and touching the floor: Repeat safety reverse

test after adjustments to force or travel limits. The need

for occasional adjustment for the force and limit

settings is normal. Weather conditions in particular can

affect door travel.

• Decrease the UP travel by turning the UP Travel

adjustment screw 2 full turns away from the arrow.

• Re-tighten the outer nut so the chain is a 1/2" (13

mm) above the base of the rail. (When the door is

reconnected and closed, the chain will sag. This is

normal.)

• Refer to Adjustment Step 1, Adjust the UP and

DOWN Travel Limits. Decrease down travel by turning

down limit adjustment screw clockwise.

• If the trolley does not move away from the bolt,

repeat the steps above.

5. My lights will not turn off when door is open:

• The garage door opener is equipped with a security

light feature. This feature activates the light on when

the safety sensor beam has been obstructed. Refer to

Operation section; Using the Wall Mounted Door

Control, Light Feature.

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Bell Wire

Diagnostics

Located On

Motor Unit

Installed

Safety Reversing

Sensor

LED or

Diagnostic

LED

Your garage door opener is programmed with self-diagnostic

capabilities. The “Learn” button/diagnostic LED will flash a

number of times then pause signifying it has found a potential

issue. Consult Diagnostic Chart below.

"Learn"

Button

Safety Reversing Sensor

Diagnostic Chart

1 FLASH

Safety reversing sensors

wire open (broken or

disconnected).

Symptom: One or both of the Indicator lights on the safety reversing sensors

do not glow steady.

• Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/

white wires reversed), broken or disconnected wires, replace/attach

as needed.

2 FLASHES

• Disconnect all wires from back of motor unit.

• Remove sensors from brackets and shorten sensor wires to 1-2 ft. (30-60 cm)

from back each of sensor.

Safety reversing sensors

wire shorted or black/

white wire reversed.

• Reattach sending eye to motor unit using shortened wires. If sending eye

indicator light glows steadily, attach the receiving eye.

• Align sensors, if the indicator lights glow replace the wires for the sensors. If the

sensor indicator lights do not light, replace the safety reversing sensors.

Symptom: LED is not lit on door control.

• Inspect door control/wires for a short (staple in wire), replace as needed.

• Disconnect wires at door control, touch wires together. If motor unit activates,

replace door control.

3 FLASHES

Door control or

wire shorted.

• If motor unit does not activate, disconnect door control wires from motor unit.

Momentarily short across red and white terminals with jumper wire. If motor unit

activates, replace door control wires.

4 FLASHES

Safety reversing sensors

slightly misaligned

(dim or flashing LED).

Symptom: Sending indicator light glows steadily, receiving indicator light is

dim or flashing.

• Realign receiving eye sensor, clean lens and secure brackets.

• Verify door track is firmly secured to wall and does not move.

Symptom: Motor has over heated; the motor unit does not operate or trolley is

stuck on stop bolt = Motor unit hums briefly; RPM Sensor =

Short travel 6-8" (15-20 cm).

• Unplug unit to reset. Try to operate motor unit, check diagnostic code.

• If it is still flashing 5 times and motor unit moves 6-8" (15-20 cm), replace

RPM sensor.

5 FLASHES

Motor overheated or

possible RPM sensor

failure. Unplug to reset.

• If motor unit doesn’t operate, motor unit is overheated. Wait 30 minutes and retry.

If motor unit still will not operate replace logic board.

6 FLASHES

Symptom: Motor unit doesn’t operate.

• Replace logic board because motor rarely fails.

Motor Circuit Failure.

Replace Receiver

Logic Board.

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PROGRAMMING

NOTICE: If this Security✚^®garage door opener is operated with a non-rolling code transmitter, the technical measure in

the receiver of the garage door opener, which provides security against code-theft devices, will be circumvented. The

owner of the copyright in the garage door opener does not authorize the purchaser or supplier of the non-rolling code

transmitter to circumvent that technical measure.

Your garage door opener has already been programmed at the factory to operate with your hand-held remote control.

The door will open and close when you press the large push button.

Below are instructions for programming your opener to operate with additional Security✚^®315 MHz remote controls.

To Add or Reprogram a Hand-held Remote Control

USING THE “LEARN” BUTTON

USING THE DOOR CONTROL

LOCK

LIGHT

1. Press and hold the button on the

hand-held remote* that you wish to

operate your garage door.

1. Press and release the “learn” button

on the motor unit. The learn indicator

light will glow steadily for 30 seconds.

2. While holding the remote button,

press and hold the LIGHT button on

the door control.

2. Within 30 seconds, press and hold

the button on the hand-held remote*

that you wish to operate your garage

door.

LOCK

LIGHT

3. Continue holding both buttons while

you press the push bar on the door

control (all three buttons are held).

3. Release the button when the motor

unit lights blink. It has learned the

code. If light bulbs are not installed,

two clicks will be heard.

LOCK

LIGHT

4. Release buttons when the motor unit

lights blink. It has learned the code. If

light bulbs are not installed, two clicks

will be heard.

To Erase All Codes From Motor Unit

Memory

*3-Button Remotes

If provided with your garage door opener, the large button

is factory programmed to operate it. Additional buttons on

any Security✚^®3-Button

To deactivate any unwanted remote, first

erase all codes:

remote or compact remote

Press and hold the “learn” button on motor

unit until the learn indicator light goes out

(approximately 6 seconds). All previous

codes are now erased. Reprogram each remote or keyless

entry you wish to use.

can be programmed to

operate other Security✚^®

garage door openers.

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To Add, Reprogram or Change a Keyless Entry PIN

NOTE: Your new Keyless Entry must be programmed to operate your garage door opener.

USING THE “LEARN” BUTTON

USING THE DOOR CONTROL

LOCK

LIGHT

NOTE: This method requires two people if the Keyless Entry

1. Press and release the “learn” button

on motor unit. The learn indicator

light will glow steadily for 30

seconds.

is already mounted outside the garage.

1. Enter a four digit personal

identification number (PIN) of your

choice on the keypad. Then press

and hold ENTER.

2. Within 30 seconds, enter a four digit

personal identification number (PIN)

of your choice on the keypad. Then

press and hold the ENTER button.

2. While holding the ENTER button,

press and hold the LIGHT button

on the door control.

LOCK

LIGHT

3. Release the button when the motor

unit lights blink. It has learned the

code. If light bulbs are not installed,

two clicks will be heard.

3. Continue holding the ENTER and

LIGHT buttons while you press the

push bar on the door control (all

three buttons are held).

LOCK

LIGHT

To change an existing, known PIN

If the existing PIN is known, it may be changed by one

person without using a ladder.

4. Release buttons when the motor unit

lights blink. It has learned the code.

If light bulbs are not installed, two

clicks will be heard.

1. Press the four buttons for the present PIN, then press

and hold the # button.

The opener light will blink twice. Release the # button.

2. Press the new 4-digit PIN you have chosen, then

press Enter.

2. Press the temporary 4-digit PIN you have chosen, then

press Enter.

The motor unit lights will blink once when the PIN has

been learned.

The opener light will blink four times.

3. To set the number of hours this temporary PIN will

work, press the number of hours (up to 255), then

press ✽.

Test by pressing the new PIN, then press Enter. The door

should move.

To set a temporary PIN

3. To set the number of times this temporary PIN will

work, press the number of times (up to 255), then

press #.

You may authorize access by visitors or service people

with a temporary 4-digit PIN. After a programmed number

of hours or number of accesses, this temporary PIN

expires and will no longer open the door. It can be used

to close the door even after it has expired. To set a

temporary PIN:

The opener light will blink once when the temporary PIN

has been learned.

Test by pressing the four buttons for the temporary PIN,

then press Enter. The door should move. If the temporary

PIN was set to a certain number of openings, remember

that the test has used up one opening. To clear the

temporary password, repeat steps 1-3, setting the

number of hours or times to 0 in step 3.

1. Press the four buttons for your personal entry PIN (not

the last temporary PIN), then press and hold the ✽

button.

The opener light will blink three times. Release the

button.

One Button Close: Opener can be closed by pressing only the ENTER button if the one button close feature has been

activated. This feature has been activated at the factory. To activate or deactivate this feature press and hold buttons 1

and 9 for 10 seconds. The keypad will blink twice when the one button close is active. The keypad will blink four times

when one button close is deactivated.

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REPAIR PARTS

Rail Assembly Parts

KEY

NO.

PART

NO.

DESCRIPTION

4A1008

Master link kit

41A4813

41A3489

Chain pulley bracket

Complete trolley

assembly

1707LM

1708LM

1710LM

One-piece rail

8 ft. (2.4 m) complete rail

10 ft. (3 m) complete rail

41D3484 Full chain assembly

83A11-2

Rail grease

Installation Parts

KEY PART

NO. NO.

LOCK

LIGHT

DESCRIPTION

41A5273-1 Multi-function door control panel

371LM

10A20

Single-button remote control

3V2032 Lithium battery

CEILING

29B137

41A2828

Remote control visor clip

Emergency release rope & handle

assembly

TICE

41B4494-1 2-Conductor bell wire,

white & white/red

41A4353

41A5047

178B35

178B34

41A5034

Header bracket w/clevis pin & fastener

Door bracket w/clevis pin & fastener

Curved door arm section

Straight door arm section

Safety reversing sensor kit (receiving

and sending eyes) with 3 ft. (.9 m)

2-conductor bell wire

41A5266-1 Safety reversing sensor brackets (2)

NOT SHOWN

41A2770-6 Installation hardware bag

(includes hardware listed on page 5).

114A3588

Owner’s manual

114A3588SP Owner’s manual - Spanish

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Motor Unit Assembly Parts

(Down)

Contact

LIMIT SWITCH ASSY.

Brown

Wire

D N

Grey

Wire

U P

Drive

Gear

Center Limit

Contact

(Up)

Contact

Yellow

Wire

KEY PART

NO. NO.

NO.

DESCRIPTION

31D380

Sprocket cover

41A5525-24 Cover

41C4220A Gear and sprocket assembly

Complete with: Spring washer,

thrust washer, retaining ring,

bearing plate, roll pins (2), drive

gear and worm gear, helical gear

w/retainer and grease

41A2818

Limit switch drive & retainer

Limit switch assembly

41D3452

41A2822-1

41C4398A

Interrupter cup assembly

RPM sensor assembly

41AC050-1M Receiver logic board.

Complete with: Logic board,

41A2817

Drive/worm gear kit w/grease,

roll pins (2)

end panel w/all labels

41C5498

41C5497

41D180-1

Low voltage wire harness.

High voltage wire harness.

End panel w/all labels

41B4245

Line cord

41A5484-1 End panel w/all labels

4A1344

108D79

Light socket

Lens

NOT SHOWN

Motor shaft bearing kit

Opener assembly hardware

kit (includes screws not

designated by a number in

illustration)

41A2826

41A2825

30B532

30B533

Capacitor - 1/2 HP

Capacitor - 1/3 HP

12A373

Capacitor bracket

41A3150

41D3058

Terminal block w/screws

Universal replacement motor &

bracket assembly

Complete with: Motor, worm,

bracket, bearing assembly, RPM

sensor

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ACCESSORIES

1702LM

Outside Quick Release:

373P

SECURITY✚^®3-Button Remote

Control

Required for a garage with NO access

door. Enables homeowner to open

garage door manually from outside by

disengaging trolley.

Includes visor clip.

374LM

Security✚^®4-Button

41A5281

377LM

Extension Brackets:

Remote Control

(Optional) For safety sensor installation

onto the wall or floor.

Includes visor clip.

370LM

378LM

3-Button Mini-Remote Control with

Security✚^®

Wireless Keyless Entry with

Security✚^®:

With key ring and fastening strip.

Enables homeowner to operate garage

door opener from outside by entering

a password on a specially designed

keyboard. Also can add a temporary

password for visitors or service

persons. This temporary password can

be limited to a programmable number

of hours or entries.

Wireless Door Control:

Push bar, light feature and auxiliary

button. Includes battery.

LOCK

LIGHT

915LM

Garage Door Monitor:

975LM

Laser Park Assist:

Security for the largest door of your

home!

Laser enables homeowners to

precisely park vehicles in the garage.

Tells you if your garage door is open

or closed. Monitors up to 4 garage

doors by adding additional sensor

modules.

CLOSED

OPEN

395LM

Remote Light Control:

990LM

Surge Protector:

Enables homeowner to turn on a lamp,

television or other appliance from their

car with their garage door opener

remote or from anywhere in their home

with an additional LiftMaster

The Garage Door Opener Surge

Protector is designed to protect

LiftMaster garage door openers

against damage from lightning and

power surges.

Security✚^®remote.

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LIFTMASTER^®SERVICE IS

ON CALL

HOW TO ORDER

REPAIR PARTS

Selling prices will be furnished on request or parts will be

shipped at prevailing prices and you will be billed

accordingly.

OUR LARGE SERVICE ORGANIZATION

SPANS AMERICA AND CANADA

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE

FOLLOWING INFORMATION:

INSTALLATION AND SERVICE INFORMATION IS AS NEAR

AS YOUR TELEPHONE.

• PART NUMBER

• PART NAME

SIMPLY DIAL OUR TOLL FREE NUMBER:

• MODEL NUMBER

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Technical Support Group

1-800-528-9131

6050 S. Country Club Road

Tucson, Arizona 85706

www.liftmaster.com

For professional installation, parts and service, contact

your local LIFTMASTER/CHAMBERLAIN dealer. Look for him

in the Yellow Pages, or call our Service number for a list of

dealers in your area.

SERVICE INFORMATION

TOLL FREE NUMBER:

1-800-528-9131

LIFTMASTER ONE-YEAR LIMITED WARRANTY

FOUR YEAR MOTOR LIMITED WARRANTY

The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally

installed, that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase [and that the motor is

free from defect in materials and/or workmanship for a period of four years from the date of purchase]. The proper operation of this product is

dependent on your compliance with the instructions regarding installation, operation, maintenance and testing. Failure to comply strictly with

those instructions will void this limited warranty in its entirety.

If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call 1-800-528-9131, toll free,

before dismantling this product. Then send this product, pre-paid and insured, to our service center for warranty repair. You will be advised of

shipping instructions when you call. Please include a brief description of the problem and a dated proof-of-purchase receipt with any product

returned for warranty repair. Products returned to Seller for warranty repair, which upon receipt by Seller are confirmed to be defective and

covered by this limited warranty, will be repaired or replaced (at Seller’s sole option) at no cost to you and returned pre-paid. Defective parts

will be repaired or replaced with new or factory-rebuilt parts at Seller’s sole option.

ALLIMPLIEDWARRANTIESFORTHEPRODUCT, INCLUDINGBUTNOTLIMITEDTOANYIMPLIEDWARRANTIESOFMERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE ONE-YEAR LIMITED WARRANTY PERIOD SET

FORTH ABOVE [EXCEPT THE IMPLIED WARRANTIES WITH RESPECT TO THE MOTOR, WHICH ARE LIMITED IN DURATION TO THE

FOUR-YEAR LIMITED WARRANTY PERIOD FOR THE MOTOR], AND NO IMPLIED WARRANTIES WILL EXIST OR APPLY AFTER SUCH

PERIOD. Some States do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

THIS LIMITED WARRANTY DOES NOT COVER NON-DEFECT DAMAGE, DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION

OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY

MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A

REPAIRED OR REPLACED UNIT, REPLACEMENT OF BATTERIES AND LIGHT BULBS OR UNITS INSTALLED FOR NON-RESIDENTIAL

USE.

THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE DOOR

HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR ALIGNMENT OR HINGES. THIS

LIMITED WARRANTY ALSO DOES NOT COVER ANY PROBLEMS CAUSED BY INTERFERENCE. ANY SERVICE CALL THAT DETERMINES

THE PROBLEM HAS BEEN CAUSED BY ANY OF THESE ITEMS COULD RESULT IN A FEE TO YOU.

UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ARISING IN

CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER’S LIABILITY FOR BREACH OF

WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT COVERED

HEREBY. NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS

PRODUCT.

Some States do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or exclusion may

not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

114A3588B

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