The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
®
GARAGE DOOR OPENER
Model 2280 1/2 HP
2280-267 1/2 HP
2280-976 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 under the light lens on the front panel
of your opener.
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Preparing your garage door
WARNING
To prevent possible SERIOUS INJURY OR DEATH:
Before you begin:
• 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.
CAUTION
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
2
1
Level
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
3
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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.
See page 13.
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum,
door with glass panels, etc.).
See page 20 for details.
Header Wall
Motor Unit
Extension Spring
Wall-
mounted
Door
OR
Torsion Spring
Control
Door
Center
Access Door
Safety
Reversing
Sensor
Gap between floor and bottom of door
must not exceed 1/4"
Safety Reversing Sensor
FINISHED CEILING
ONE-PIECE DOOR WITHOUT TRACK
Support bracket
& fastening
hardware is required.
See page 13.
Motor Unit
Header
Wall
ONE-PIECE DOOR WITH TRACK
Wall-
mounted
Door
Control
Access
Door
Access
Door
Safety
Reversing Sensor
Gap between floor and bottom of
door must not exceed 1/4"
Safety Reversing Sensor
Gap between floor and bottom of door
must not exceed 1/4"
Safety Reversing Sensor
Safety
Reversing Sensor
4
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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.
Belt Cap Retainer
SECURITY■
Remote Control
Transmitter Visor Clip
3-Channel Remote Control
LOCK
2280, 2280-976 (1)
2280-267 (2)
LIGHT
Styrofoam
Multi-Function
Door Control Panel
Belt
Light Lens (2)
One-Piece
T-Rail
SECURITY■
Door Bracket
Y
L
N
O
T
Keyless Entry
Models 2280-267,
2280-976 Only
N
U
O
M
G
IN
IL
E
C
P
U
Trolley
Header Bracket
Belt
Pulley Bracket
Curved Door
Arm Section
2-Conductor Bell Wire
White & White/Red
(2) Safety Reversing Sensors
Straight Door
Arm Section
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Safety Labels
and
Literature
Safety Sensor
Bracket (2)
INSTALLATION HARDWARE
Self-Threading Screw 1/4"-14x5/8" (2)
Screw 6-32x1" (2)
Insulated Staples (30)
Ring Fastener (3)
Dry Wall Anchors (2)
Rope
Hex Bolt 5/16"-18x7/8" (4)
Hex Screw #8 x 3/8" (2)
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)
Nut 5/16"-18 (4)
Handle
Rail Grease
Carriage Bolt 1/4"-20x1/2" (2)
Wing Nut 1/4”-20 (2)
Lock Washer 5/16" (4)
Screw 6ABx1-1/4" (2)
5
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ASSEMBLY STEP 1
CAUTION
Attach the T-Rail to the Motor Unit
To avoid SERIOUS damage to opener, ONLY use bolts
mounted in top of motor unit.
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.
Washered Bolt
5/16"-18x1/2"
• Align T-rail and styrofoam over sprocket. Cut tape
from T-rail, chain and styrofoam.
USE ONLY THIS
TYPE AND SIZE
• REMOVE STYROFOAM.
Sprocket
T-Rail
Hole
BOLT
• Insert both washered bolts through the T-rail into
the motor unit. Tighten bolts securely.
Use only these bolts! Use of any other bolts
will cause serious damage to door opener.
• Position belt over the motor unit sprocket.
ASSEMBLY STEP 2
Set the Belt Tension
• By hand, thread the spring trolley nut on the
threaded shaft until it is finger tight against the
trolley (Figure 1). Do not use any tools.
• Insert a screwdriver tip into one of the nut ring
slots and brace it firmly against the trolley
(Figure 2).
Trolley
Threaded
Shaft
• Place a 7/16" open end wrench on the square
end. Rotate about 1/4 turn until the spring releases
and snaps the nut ring against the trolley
(Figure 3).
Spring/Trolley Nut
Figure 1
This extends the spring for optimum belt tension.
Trolley
Threaded
Shaft
Nut
Ring
Square
End
Trolley
Nut Ring
Trolley
Nut Ring
Nut Ring
Slots
BEFORE
1"
AFTER RELEASE
1-1/4"
Figure 2
Figure 3
6
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ASSEMBLY STEP 3
WARNING
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.
Attach the Belt Cap Retainer
• Position the belt cap retainer over the motor unit
sprocket so the two holes in cap align with the two
holes in mounting plate. Attach with #8x3/8" hex
screws provided.
You have now finished assembling your garage
door opener. Please read the following warnings
before proceeding to the installation section.
Hex Screws 8x3/8"
Belt Cap
Retainer
HARDWARE SHOWN
ACTUAL SIZE
Motor Unit
Sprocket
Mounting Plate
Hex Screw
#8x3/8"
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS
WARNING
To reduce the risk of severe injury or death:
1. READ AND FOLLOW ALL INSTALLATION WARNINGS
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
• away from all moving parts of the door.
10. Place entrapment warning label on wall next to garage
door control.
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 or more above floor.
6. Mount emergency release handle 6 feet above floor.
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 one-
inch high object (or a 2x4 laid flat) on the floor.
7. NEVER connect garage door opener to power source
until instructed to do so.
7
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INSTALLATION STEP 1
Determine the Header Bracket
Location
Finished
Ceiling
Vertical
Centerline
Header
Wall
Structural
2x4
Supports
WARNING
To prevent possible SERIOUS INJURY or DEATH:
• 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.
• Concrete anchors MUST be used if mounting header
bracket or 2x4 into masonry.
Vertical
Centerline
• NEVER try to loosen, move or adjust garage door,
springs, cables, pulleys, brackets, or their hardware, all
of which are under EXTREME tension.
• 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.
Ceiling
SECTIONAL DOOR
Header Wall
AND ONE-PIECE DOOR WITH TRACK
Track
2"
1. Close the door and mark the inside vertical
centerline of the garage door.
Highest Point
of Travel
2. Extend the line onto the header wall above the
door.
Sectional door
with curved
track
You can fasten the header bracket within 4 feet
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 10) when clearance is minimal. (It may be
mounted on the wall upside down if necessary,
to gain approximately 1/2".)
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 10.
3. Open your door to the highest point of travel as
shown. Draw an intersecting horizontal line on the
header wall 2" above the high point. This height will
provide travel clearance for the top edge of the
door.
Header Wall
2"
Track
Highest Point
of Travel
One-piece
Proceed to Step 2, page 10.
door with
horizontal
track
Door
8
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ONE-PIECE DOOR WITHOUT TRACK
Unfinished
Ceiling
1. Close the door and mark the inside vertical
centerline of your garage door. Extend the line
onto the header wall above door, as shown.
Structural
Supports
Header Wall
Vertical
Centerline
If headroom clearance is minimal, you can install
the header bracket on the ceiling. See page 10.
2x4
2x4
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.
OPTIONAL
CEILING MOUNT
FOR
HEADER BRACKET
2. Open your door to the highest point of travel as
shown. Measure the distance from the top of the
door to the floor. Subtract the actual height of the
door. Add 8" to the remainder. (See Example).
Vertical
Centerline
of Garage
Door
3. Close the door and draw an intersecting horizontal
line on the header wall at the determined height.
NOTE: If the total number of inches exceeds the
height available in your garage, use the maximum
height possible, or refer to page 10 for ceiling
installation.
Header Wall
Highest Point
of Travel
EXAMPLE
Distance from top of door
(at highest point of travel) to floor ...................... 92"
Door
Actual height of door.......................................... -88"
Remainder..........................................................
4"
Add..................................................................... +8"
Bracket height on header wall............................ =12"
(Measure UP from top of CLOSED door.)
Jamb
Hardware
Proceed to Step 2, page 10.
Floor
One-piece door without track:
jamb hardware
Highest Point
of Travel
Header Wall
Door
Pivot
Floor
One-piece door without track:
pivot hardware
9
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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.
UP
Optional
Wall Mounting Holes
WALL HEADER BRACKET INSTALLATION
• 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
Header
Wall
Y
L
N
O
T
Lag Screws
5/16"-9x1-5/8"
N
U
O
M
• 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.
G
IN
L
I
E
C
UP
2x4
Structural
Support
Header
Bracket
Door Spring
HARDWARE SHOWN ACTUAL SIZE
Garage
Door
Highest Point of
Garage Door Travel
Vertical
Centerline
Lag Screw
5/16"-9 x 1-5/8"
CEILING HEADER BRACKET INSTALLATION
• Extend the vertical centerline onto the ceiling as
shown.
• Center the bracket on the vertical mark, no more
than 6" 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 –
Header
Bracket
Vertical Centerline
• Mark the side holes. Drill 3/16" pilot holes and
fasten bracket securely to a structural support with
the hardware provided.
P
U
6" Maximum
Door
Spring
Lag Screws
5/16"-9x1-5/8"
Ceiling Mounting Holes
CEILING MOUNT ONLY
UP
Header Wall
The nail hole is for
positioning only.
You must use lag screws
to mount the header bracket.
Garage Door
Vertical
Centerline
10
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INSTALLATION STEP 3
Attach the T-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.
Belt Pulley
Bracket
• Align the bracket holes and join with a clevis pin
as shown.
• Insert a ring fastener to secure.
Ring
Fastener
Header
Bracket
Clevis Pin
5/16"x2-3/4"
Belt Pulley
Bracket
T-Rail
Garage
Door
Temporary
Support
HARDWARE SHOWN ACTUAL SIZE
Clevis Pin
5/16"x2-3/4"
Ring Fastener
11
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INSTALLATION STEP 4
CAUTION
To prevent damage to garage door, rest garage door
opener rail on 2x4 placed on top section of door.
Position the Opener
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.
2x4
laid flat
• Raise the opener onto a stepladder. You will need
help at this point if the ladder is not tall enough.
T-rail
• Open the door all the way and place a 2x4 laid flat
on the top section beneath the rail.
• 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.
Door
Trolley
Release Arm
ENGAGED
RELEASED
ONE-PIECE DOOR WITHOUT TRACK
Header
Bracket
• With the door fully open and parallel to the floor,
measure the distance from the floor to the top of
the door.
Top of Motor Unit
• Using a stepladder as a support, raise the top of
the opener to this height.
Top of Door
• The top of the door should be level with the top of
the motor unit. Do not position the opener more
than 2" above this point.
12
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INSTALLATION STEP 5
WARNING
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.
Hang the Opener
Two representative installations are shown. Yours
may be different. Hanging brackets should be angled
(Figure 1) to provide rigid support. On finished
ceilings (Figure 2), attach a sturdy metal bracket to
structural supports before installing the opener. This
bracket and fastening hardware are not provided.
Structural
Supports
Figure 1
1. Remove foam packaging. 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
5/16"-18x1-7/8"
Measure
Distance
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
3. Drill 3/16" pilot holes in the structural supports.
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).
7. Remove the 2x4. Operate the door manually. If the
door hits the rail, raise the header bracket.
8. Grease the top and underside of the rail surface
where the trolley slides with rail grease.
Figure 2
Hidden
Support
Bracket
(Not Provided)
— FINISHED CEILING —
Lag Screws
5/16"-18x1-7/8"
(Not Provided)
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
HARDWARE SHOWN ACTUAL SIZE
Bolt 5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
Lag Screw 5/16"-18x1-7/8"
Hex Bolt
5/16"-18x7/8"
Lock Washer 5/16"
Nut 5/16"-18
13
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WARNING
To prevent possible SERIOUS INJURY or DEATH from
electrocution:
INSTALLATION STEP 6
Install the Door Control
Locate door control within sight of the door at a
minimum height of 5 feet where small children cannot
reach, and away from moving parts of the 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 indicator light behind
the cover will indicate proper connection. If not lit, the
Lock and Light features will not function (reverse wires
to correct).
• 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, 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.
1. Strip 7/16" 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 2 and white/red
wire to the 1 (Figure 3).
2. Remove white cover by gently prying at slot in top
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
Insulated
Staples
Screw 6AB x 1-1/4"
(drywall installation)
• Drill and install bottom screw, allowing 1/8" to
protrude above wall surface.
Screw 6-32 x 1"
(gang box installation)
• Position bottom of door control on screw head and
slide down to secure. Adjust screw for snug fit.
Dry Wall Anchors
• Install top screw with care to avoid cracking plastic
housing. Do not overtighten.
PRE-WIRED
INSTALLATION
STANDARD
INSTALLATION
Figure 1
Figure 2
• Insert bottom tabs and snap on cover.
Single
Gang Box
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.
LOCK
LIGH
T
LOCK
LIGH
T
To Replace
24 Volt
Bell Wire
Insert Bottom Tabs First
To Replace
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.
Insert Bottom Tabs First
Figure 4 REMOVE COVER
Figure 3 MULTI-FUNCTION
DOOR CONTROL (BACK)
Slot
Top Mounting Hole
4. Strip 7/16" 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).
Terminal
Screws
RED WHT
1
2
LOCK
LIGH
T
Bell Wire
Bottom Mounting Hole
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.
Figure 5
Door Control
Connections
To release wire, push in tab
with screwdriver tip
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.
9
1
9
1
7
3
7
3
5
5
KG
KG
White
Red
Grey
NOTE: DO NOT connect the power and operate the
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. See Safety Reversing Sensor Instructions
beginning on page 17.
7/16"
Strip wire 7/16"
14
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INSTALLATION STEP 7
Install the Lights
100 Watt (Max)
Standard Light Bulb
Release Tab
• 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.
• Install up to a 100 watt maximum light bulb in each
socket. The lights will turn ON and remain lit for
approximately 4-1/2 minutes when power is
connected. Then the lights will turn OFF.
Lens
Hinge
100 Watt (Max)
Standard Light Bulb
• Reverse the procedure to close the lens.
• If the bulbs burn out prematurely due to vibration,
replace with a Garage Door Opener bulb.
NOTE: Use only standard light bulbs. The use of
short neck or speciality light bulbs may overheat the
endpanel or light socket.
INSTALLATION STEP 8
Attach the Emergency Release
Rope and Handle
WARNING
• 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" 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 above
the floor. 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
Emergency
Release Handle
NOTICE
Overhand
Knot
15
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INSTALLATION STEP 9
WARNING
Electrical Requirements
To prevent possible SERIOUS INJURY or DEATH from
electrocution or fire:
To avoid installation difficulties, do not run the
opener at this time.
• 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 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
Ground Tab
If permanent wiring is required by your local
code, refer to the following procedure.
Green
Ground Screw
To make a permanent connection through the 7/8"
hole in the top of the motor unit:
Black
Wire
Ground Wire
• Remove the motor unit cover screws and set the
cover aside.
• Remove the attached 3-prong cord.
Black Wire
White Wire
• 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.
• Reinstall the cover.
To avoid installation difficulties, do not run the
opener at this time.
16
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INSTALLATION STEP 10
WARNING
®
Install The Protector System
• Be sure power is not connected to the garage door
opener BEFORE installing the safety reversing sensor.
The safety reversing sensor must be connected
and aligned correctly before the garage door
opener will move in the down direction.
• To prevent SERIOUS INJURY or DEATH from a closing
garage door:
– Correctly connect and align the safety reversing
sensor. This required safety device MUST NOT be
disabled.
IMPORTANT INFORMATION ABOUT
THE SAFETY REVERSING SENSOR
– Install the safety reversing sensor so beam is NO
HIGHER than 6" above garage floor.
When properly connected and aligned, the sensor
will detect an obstacle in the path of its electronic
beam. The sending eye (with an orange 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" 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, rollers or other hardware) may interrupt the
beam while the door is closing.
The mounting brackets are designed to clip onto the
track of sectional garage doors without additional
hardware.
Sensor Beam
6" max.
above floor
Sensor Beam
6" max.
above floor
Invisible Light Beam
Protection Area
Facing the door from inside the garage
17
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INSTALLING THE BRACKETS
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" above the floor. They may be installed
in one of three ways, as follows.
DOOR TRACK MOUNT (RIGHT SIDE)
Door
Track
Garage door track installation (preferred):
Lip
Indicator
light
• 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.
Sensor
Bracket
Lens
If your door track will not support the bracket
securely, wall installation is recommended.
Wall installation:
Figure 2
• 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.
WALL MOUNT (RIGHT SIDE)
Inside
• If additional depth is needed, an extension bracket
(see Accessories) or wood blocks can be used.
Extension
Bracket
(See Accessories)
arage
G
all
W
• 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"
above the floor.
(Provided with
Extension Bracket)
• 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.
Sensor
Bracket
(Provided with
Extension
Bracket)
Indicator
light
Lens
Floor installation:
Figure 3
• Use wood blocks or extension brackets (see
Accessories) to elevate sensor brackets so the
lenses will be no higher than 6" above the floor.
FLOOR MOUNT (RIGHT SIDE)
Lens
• Carefully measure and place right and left
assemblies at the same distance out from the wall.
Be sure all door hardware obstructions are
cleared.
Indicator
Sensor
Bracket
light
(Provided with
Extension Bracket)
• Fasten to the floor with concrete anchors as
shown.
Attach with
concrete anchors
(not provided)
(Provided with
Extension
Bracket)
Inside
G
W
arage
all
Extension
Bracket
(See Accessories)
HARDWARE SHOWN ACTUAL SIZE
Carriage Bolt
1/4"-20x1/2"
Wing Nut
Staples
18
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MOUNTING AND WIRING THE SAFETY SENSORS
Figure 4
• 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 4).
Wing nut
Carriage bolt
1/4"-20x1/2"
• Finger tighten the wing nuts.
Lens
• Run the wires from both sensors to the opener. Use
insulated staples to secure wire to wall and ceiling.
TROUBLESHOOTING THE SAFETY SENSORS
• Strip 7/16" 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 5).
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.
• Incorrect wiring between sensors and opener.
• A broken wire.
ALIGNING THE SAFETY SENSORS
• 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:
• Check alignment.
The sending eye orange 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 for an open wire to the receiving eye.
3. If the receiving eye indicator light is dim, realign
either 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. (If bulbs are not
installed, 10 clicks can be heard.) See page 17.
• Loosen the sending eye wing nut and readjust,
aiming directly at the receiving eye. Lock in place.
• 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
Quick-Connect Terminals
Figure 5
Finished
Ceiling
Bell Wire
Bell Wire
1. Strip wire 7/16"
7/16"
2. Twist like colored
wires together
3. Insert into
appropriate terminals
Red
Grey
White
Quick-Connect Terminals
Sensor
Invisible Light Beam
Protection Area
Sensor
19
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CAUTION
To prevent damage to garage door, reinforce inside of
door with angle iron both vertically and horizontally.
INSTALLATION STEP 11
Fasten the Door Bracket
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.
Door
Bracket
Location
HORIZONTAL AND VERTICAL
REINFORCEMENT IS NEEDED
FOR LIGHTWEIGHT GARAGE
DOORS (FIBERGLASS,
ALUMINUM, STEEL, DOORS
WITH GLASS PANEL, ETC).
(NOT PROVIDED)
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.
Vertical
Centerline
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.
Figure 1
Vertical
Reinforcement
(Not Provided)
2. Position the top edge of the bracket 2"-4" below
the top edge of the door, OR directly below any
structural support across the top of the door.
Vertical
Reinforcement
Vertical
Centerline
Bolt
5/16"-18x2"
Vertical
Centerline
3. Mark, drill holes and install as follows, depending
on your door’s construction:
UP
Metal or light weight doors using a vertical angle
iron brace between the door panel support and
the door bracket:
Door
Bracket
UP
Lock Washer
5/16"
Door
Bracket
Nut
5/16"-18
• Drill 3/16" fastening holes. Secure the door bracket
using the two 1/4"-14x5/8" self-threading screws.
(Figure 2A)
Self-Threading
Screw
1/4"-14x5/8"
Figure 2B
• Alternately, use two 5/16" bolts, lock washers and
nuts (not provided). (Figure 2B)
Figure 2A
Inside Edge
of Door or
Reinforcement Board
(Not Provided)
Metal, insulated or light weight factory reinforced
doors:
Bolt
5/16"x2"
• Drill 3/16" fastening holes. Secure the door bracket
using the self-threading screws (Figure 3).
Vertical
Centerline
Wood Doors:
UP
• 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)
UP
Vertical
Centerline
Self-Threading
Screw
1/4"-14x5/8"
Figure 4
NOTE: The 1/4"-14x5/8"
self-threading screws are
not intended for use on
wood doors.
HARDWARE
SHOWN
ACTUAL SIZE
Figure 3
Self-Threading
Screw
1/4"-14x5/8"
20
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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.
HARDWARE SHOWN
ACTUAL SIZE
• Metal Doors: Drill 3/16" pilot holes and fasten the
bracket with the 1/4"-14x5/8" self-threading screws
provided.
• 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
Header Wall
Finished Ceiling
2x4 Support
(Inside
Garage)
Top Edge
of Door
Header
Bracket
Optional
Placement
Door
Bracket
METAL DOOR
Optional
HORIZONTAL AND VERTICAL
Placement
REINFORCEMENT IS NEEDED
Nut
5/16"-18
of Door
Bracket
Lock
Washer
5/16"
FOR LIGHTWEIGHT GARAGE
DOORS (FIBERGLASS,
ALUMINUM, STEEL, DOORS
WITH GLASS PANEL, ETC).
Top of Door
Door
Bracket
(NOT PROVIDED)
Vertical
(Inside
Centerline of
Garage Door
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.
21
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INSTALLATION STEP 12
Inner Trolley
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" as shown in
Figures 1, 2 and 3.
Door
Bracket
• Figure 1:
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.
Figure 1
• 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.
• Figure 3, Hole alignment alternative:
– If holes in curved arm are above holes in straight
arm, disconnect straight arm. Cut about 6" from
the solid end. Reconnect to trolley with cut end
down as shown.
Lock
Washers
5/16"
– Bring arm sections together.
Nuts
5/16"-18
Emergency
Release
Handle
– Find two pairs of holes that line up and join with
bolts, lock washers and nuts.
• Proceed to Adjustment Step 1, page 24. Trolley will
re-engage automatically when opener is operated.
Bolts
5/16"-18x7/8"
Door Bracket
Figure 2
HARDWARE SHOWN ACTUAL SIZE
Nut 5/16"-18
Lock Washer 5/16" Ring Fastener
Lock
Washers
5/16"
Nuts
5/16"-18
Clevis Pin
5/16"x1-1/4" (Door Bracket)
Hex Bolt
5/16"-18x7/8"
Clevis Pin
5/16"x1" (Trolley)
Bolts
5/16"-18x7/8"
Cut This End
Figure 3
22
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Door
Bracket
ALL ONE-PIECE DOORS
Ring
Fastener
1. Assemble the door arm, Figure 4:
Nuts
5/16"-18
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
• With the door closed, connect the straight door
arm section to the door bracket with the
5/16"x1-1/4" clevis pin.
Bolts
5/16"-18x7/8
Curved
Door Arm
Figure 4
• Secure with a ring fastener.
– Press the Door Control push button. The trolley
will travel to the fully closed position.
2. Adjustment procedures, Figure 5:
• 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 24. Follow
adjustment procedures below.
– 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" of trolley travel.
• Open door adjustment: decrease UP
travel limit
– Turn the UP limit adjustment screw counter-
clockwise 5 1/2 turns.
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.
– 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" of trolley travel.
• Secure with a ring fastener.
• 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.
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.
• Closed door adjustment: decrease DOWN
travel limit
– Turn the DOWN limit adjustment screw
clockwise 5 complete turns.
Figure 5
Fully Closed
Trolley
Door Arm
Connector Hole
Door Arm
Emergency Release Handle
Closed
Door
Fully Open
Trolley
Door Arm
Connector Hole
Correct Angle
Door Arm
Door with
Backward Slant
(Undesirable)
Open Door
23
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ADJUSTMENT STEP 1
WARNING
Without a properly installed safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
• Incorrect adjustment of garage door travel limits will
interfere with proper operation of safety reversal
system.
Adjust the UP and DOWN Travel
Limits
Limit adjustment settings regulate the points at which
the door will stop when moving up or down.
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?
• If one control (force or travel limits) is adjusted, the
other control may also need adjustment.
• Does the door stay closed and not reverse
unintentionally when fully closed?
• After ANYadjustments are made, the safety reversal
system MUST be tested. Door MUST reverse on
contact with one-inch high object (or 2x4 laid flat) on
floor.
If your door passes both of these tests, no limit
adjustments are necessary unless the reversing test
fails (Adjustment Step 3, page 26).
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.
CAUTION
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.
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.
2-4"
HOW AND WHEN TO ADJUST THE LIMITS
Cover Protection
Bolt
• If the door does not open completely but opens
at least five feet:
Left Side Panel
Limit Adjustment Screws
Increase up travel. Turn the UP limit adjustment
screw clockwise. One turn equals 2" of travel.
NOTE: To prevent the trolley from hitting the cover
protection bolt, keep a minimum distance of 2-4"
between the trolley and the bolt.
ADJUSTMENT LABEL
• If door does not open at least 5 feet:
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" of travel.
If the opener lights are flashing, the Safety
Reversing Sensors are either not installed,
misaligned, or obstructed. See Troubleshooting,
page 19.
If door still won't close completely and the trolley
bumps into the pulley bracket (page 4), try
lengthening the door arm (page 22) 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"
of travel.
24
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ADJUSTMENT STEP 2
WARNING
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.
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.
• 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.
• If one control (force or travel limits) is adjusted, the
other control may also need adjustment.
• After ANYadjustments are made, the safety reversal
system MUST be tested. Door MUST reverse on
contact with one-inch high object (or 2x4 laid flat) on
floor.
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.
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.
Force
Adjustment
Controls
HOW AND WHEN TO ADJUST THE FORCES
1. Test the DOWN (close) force
Back Panel
• 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 one-inch
obstruction. See Adjustment Step 3, page 26.
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.
KG
KG
• 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
Antenna
adjustment, run the opener through a complete
travel cycle. Do not increase the force beyond the
minimum amount required to close the door.
2. Test the UP (open) force
FORCE ADJUSTMENT LABEL
• 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.
9
9
1
1
7
7
3
3
5
5
KG
KG
Open Force
Close Force
• If the door doesn’t open at least 5 feet,
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.
25
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ADJUSTMENT STEP 3
WARNING
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 one-inch 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.
• After ANY adjustments are made, the safety reversal
system MUST be tested. Door MUST reverse on
contact with one-inch high object (or 2x4 laid flat) on
the floor.
• Operate the door in the down direction. The door
must reverse on striking the obstruction.
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 22.
• Repeat the test.
• When the door reverses on the one-inch board,
remove the obstruction and run the opener through
3 or 4 complete travel cycles to test adjustment.
IMPORTANT SAFETY CHECK:
Repeat Adjustment Steps 1, 2 and 3 after:
• Each adjustment of door arm length, limits, or
force controls.
• Any repair to or adjustment of the garage door
(including springs and hardware).
One-inch 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
WARNING
Without a properly installed safety reversing sensor,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
®
Test the Protector System
• 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,
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" above the floor), call for a
trained door systems technician.
Safety Reversing Sensor
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
9. If one control (force or travel limits) is adjusted, the
INSTRUCTIONS.
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.
11. Safety reversal system MUST be tested every month.
3. ONLYactivate garage door when it can be seen clearly, it Garage door MUST reverse on contact with one-inch
is properly adjusted, and there are no obstructions to
door travel.
(2.5 cm) high object (or a 2 x 4 laid flat) on the floor.
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.
4. ALWAYS keep garage door in sight until completely
closed. NO ONE SHOULD CROSS THE PATH OF THE
MOVING DOOR.
5. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY
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.
14. ALWAYS disconnect electric power to garage door
opener BEFORE making any repairs or removing
covers.
OPEN DOOR.
6. If possible, use emergency release handle to disengage
trolley ONLYwhen garage door is CLOSED. Weak or
broken springs or unbalanced door could result in an
open door falling rapidly and/or unexpectedly.
7. NEVER use emergency release handle unless garage
15.
SAVE THESE INSTRUCTIONS.
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.
6. If obstructed while opening, the door will stop.
Using Your Garage Door Opener
7. If fully open, the door will not close when the beam
is broken. The sensor has no effect in the opening
cycle.
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.
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 Keyless Entry (See Accessories): If provided
with your garage door opener, it must be
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.
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
100 watts maximum.
programmed before use. See Programming.
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.
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.
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.
27
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Using the Wall-Mounted
Door Control
B) To operate one door using all three
buttons on the hand-held remote:
You may program the remote to
open the door with the large
button, close it with the middle
button, and stop the door’s
THE MULTI-FUNCTION DOOR CONTROL
Press the push bar 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.
Open
Close
Stop
Push
Bar
movement with the third button.
Lock
Button
NOTE: If remote is already programmed, you must
first erase all codes. See Programming.
LOCK
Light
Button
LIGHT
Light feature
1. With the door closed, press and hold the large
remote push button.
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
2. Press and hold the Lock button on the door
control.
3. Press and hold the door control push bar.
4. After the opener lights flash, release all buttons.
To Open the Door Manually
WARNING
maximum of four blinks and 4-1/2 minutes.
• To prevent possible SERIOUS INJURY or DEATH from
a falling garage door:
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.
– 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.
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.
• NEVER use handle to pull door open or closed. If rope
knot becomes untied, you could fall.
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 “Smart”
(learn) button on the motor unit panel is activated.
Additional features when used with the
3-Channel hand-held remote
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
door control push bar.
Trolley
A) To control the opener lights:
Release
Arm
In addition to operating the door, you
may program the remote to operate the lights.
Emergency
Release
Handle
N
1. With the door closed, press and hold a small
remote button that you want to control the light.
O
T
IC
E
(Pull Down)
2. Press and hold the Light button on the
Multi-Function door control.
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
3. While holding the Light button, press and hold the
Lock button on the door control.
Trolley
Release
Arm
4. After the opener lights flash, release all buttons.
manually as often as
necessary. To disengage the
lockout feature, pull the
handle straight down. The
trolley will reconnect on the
next UP or DOWN operation.
Emergency
Release Handle
(Pull Down & Back
Towards Opener)
E
IC
T
O
N
LOCKOUT POSITION
28
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MAINTENANCE SCHEDULE
CARE OF YOUR OPENER
Once a Month
LIMIT AND FORCE ADJUSTMENTS:
• Manually operate door. If it is unbalanced or
binding, call a trained door systems technician.
Weather conditions may cause
some minor changes in door
operation requiring some re-
adjustments, particularly during
• Check to be sure door opens & closes fully. Adjust
limits and/or force if necessary. (See pages 24
and 25.)
LIMIT CONTROLS
(Left side panel)
the first year of operation.
• Repeat the safety reverse test. Make any
Pages 24 and 25 refer to the
limit and force adjustments.
Only a screwdriver is required.
Follow the instructions carefully.
necessary adjustments. (See Adjustment Step 3.)
9
9
1
1
7
7
Once a Year
3
3
5
5
KG
• Oil door rollers, bearings and hinges. The opener
does not require additional lubrication. Do not
grease the door tracks.
KG
Open Force Close Force
FORCE CONTROLS
(Back panel)
Repeat the safety reverse test
(Adjustment Step 3, page 26) after any
adjustment of limits or force.
WARNING
THE REMOTE CONTROL BATTERY
The lithium battery should produce power
for up to 5 years. To replace battery,
use the visor clip or screwdriver
blade to pry open the case as
shown. Insert battery positive side
up.
To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery is swallowed, immediately notify doctor.
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.
Dispose of old battery properly.
Having a Problem?
3. The door operates from the Door Control, but
not from the remote control:
1. The opener doesn't operate from either the
Door Control or the remote control:
• Is the door push bar flashing? If your model has
the Lock feature, make sure it is off.
• Does the opener have electric power? Plug a lamp
into the outlet. If it doesn't light, check the fuse box
or the circuit breaker. (Some outlets are controlled
by a wall switch.)
• Have you disabled all door locks? Review
installation instruction warnings on page 7.
• Program the opener to match the remote control
code. (Refer to instructions on the motor unit
panel.) Repeat with all remotes.
4. The remote control has short range:
• Change the location of the remote control in your
car.
• Is there a build-up of ice or snow under the door?
The door may be frozen to the ground. Remove
any restriction.
• The garage door spring may be broken. Have it
replaced.
• Repeated operation may have tripped the overload
protector in the motor. Wait 15 minutes and try
again.
• Check to be sure the antenna on the side or back
panel of motor unit extends fully downward.
• Some installations may have shorter range due to
a metal door, foil backed insulation, or metal
garage siding.
5. Opener noise is disturbing in living quarters of
home:
2. Opener operates from the remote, but not from
the Door Control:
• If operational noise is a problem because of
proximity of the opener to the living quarters, the
Vibration Isolator Kit 41A3263 can be installed.
This kit was designed to minimize vibration to the
house and is easy to install.
• Is the door control lit? If not, reverse the wires. If
the opener runs, check for a faulty wire connection
at the door control, a short under the staples, or a
broken wire.
• Are the wiring connections correct? Review
Installation Step 6, page 14.
29
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11. The door reverses for no apparent reason and
opener lights blink for 5 seconds after
reversing:
Having a Problem? (Continued)
6. The garage door opens and closes by itself:
• Be sure that all remote control push buttons are
off.
• Check the safety reversing sensor. Remove any
obstruction or align the receiving eye. See
Installation Step 10.
• Remove the bell wire from the door control
terminals and operate from the remote only. If this
solves the problem, the door control is faulty
(replace), or there is an intermittent short on the
wire between the door control and the motor unit.
12. The opener lights don't turn on:
• Replace the light bulbs (100 watts maximum). Use
a standard neck garage door opener bulb if regular
bulb burns out.
• Clear memory and re-program all remote controls.
13. The opener lights don't turn off:
7. The door doesn't open completely:
• Is the Light feature on? Turn it off.
• Is something obstructing the door? Is it out of
balance, or are the springs broken? Remove the
obstruction or repair the door.
14. The opener strains or maximum force is
needed to operate door:
• The door may be out of balance or the springs
may be broken. Close the door and use the
emergency release handle to disconnect the
trolley. Open and close the door manually. A
properly balanced door will stay in any point of
travel while being supported entirely by its springs.
If it does not, disconnect the opener and call a
trained door systems technician. Do not increase
the force to operate the opener.
• If the door is in good working order but now
doesn't open all the way, increase the up force.
See Adjustment Step 2.
• If the door opens at least 5 feet, the travel limits
may need to be increased. One turn equals 2
inches of travel. See Adjustment Step 1.
Repeat the safety reverse test after the adjustment is
complete.
8. The door stops but doesn't close completely:
15. The opener motor hums briefly, then won't
work:
• Review the travel limits adjustment procedures on
page 24.
• The garage door springs may be broken. See
above.
Repeat the safety reverse test after any adjustment
of door arm length, close force or down limit.
• If the problem occurs on the first operation of the
opener, door may be locked. Disable the door lock.
9. The door opens but won't close:
Repeat the safety reverse test after the adjustment is
complete.
• If the opener lights blink, check the safety
reversing sensor. See Installation Step 10.
16. The opener won't operate due to power
failure:
• If the opener lights don’t blink and it is a new
installation, check the down force. See Adjustment
Step 2. For an existing installation, see below.
• Use the emergency release handle to disconnect
the trolley. The door can be opened and closed
manually. When power is restored, press the Door
Control push bar and trolley will automatically
reconnect (unless trolley is in lockout position.)
See page 28.
Repeat the safety reverse test after the adjustment
is complete.
10. The door reverses for no apparent reason and
opener lights don’t blink:
• Is something obstructing the door? Pull the
emergency release handle. Operate the door
manually. If it is unbalanced or binding, call a
trained door systems technician.
• The Outside Quick Release accessory (for use on
garages with no service door) disconnects the
trolley from outside the garage in case of power
failure.
• Clear any ice or snow from the garage floor area
where the door closes.
• Review Adjustment Step 2.
• If door reverses in the fully closed position,
decrease the travel limits (Adjustment Step 1).
Repeat safety reverse test after adjustments to force
or travel limits. The need for occasional adjustment
of the force and limit settings is normal. Weather
conditions in particular can affect door travel.
30
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PROGRAMMING
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✚ remote controls.
To Add an Additional Hand-held Remote Control
USING THE “LEARN” BUTTON
USING THE MULTI-FUNCTION DOOR CONTROL
9
1
9
1
7
3
7
3
5
5
KG
KG
LOCK
LIGHT
1. Press and release the “learn”
button on the motor unit. The
learn indicator light will glow
steadily for 30 seconds.
1. Press and hold the button on the
hand-held remote* that you wish
to operate your garage door.
2. While holding the remote button,
press and hold the LIGHT button
on the Multi-Function 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 Multi-Function 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
LIGH
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-Channel Remotes
If provided with your garage door opener, the large
button is factory programmed to operate it. Additional
buttons on any
Security✚ 3-channel
remote or mini-remote
can be programmed to
operate other
Security✚ garage door
To deactivate any unwanted remote,
first erase all codes:
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.
openers.
31
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To Add 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 MULTI-FUNCTION DOOR CONTROL
LOCK
LIGHT
1. Press and release the “learn”
button on motor unit. The learn
indicator light will glow steadily for
30 seconds.
NOTE: This method requires two people if the Keyless
Entry 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 Multi-Function Door
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.
Control.
3. Continue holding the ENTER and
LIGHT buttons while you press
the push bar on the Multi-Function
Door Control (all three buttons are
LOCK
LIGH
held).
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
1. Press the four buttons for the present PIN, then
press and hold the # button.
installed, two clicks will be heard.
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
Test by pressing the new PIN, then press Enter. The
door should move.
work, press the number of hours (up to 255), then
press ✽.
To set a temporary PIN
OR
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:
3. To set the number of times this temporary PIN will
work, press the number of times (up to 255), then
press #.
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.
32
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REPAIR PARTS
Rail Assembly Parts
6
3
1
7
4
2
5
KEY
NO.
PART
NO.
DESCRIPTION
1
2
3
4
5
6
7
8
4A1008
Master link kit
41B5424
41B3869-1
109B33
Belt pulley bracket
Complete trolley assembly
Trolley clip
One-piece T-rail
Full belt assembly
Tensioner assembly
Rail grease
1777LM
8
41A5434-11
41B4103
83A11-2
Installation Parts
4
2
3
1
KEY PART
NO. NO.
LOCK
T
LIGH
DESCRIPTION
1
2
41A5273-1
Multi-Function door control panel
41A5056-3
3-channel remote control housing
(no circuit board)
6
3
4
5
6
7
8
9
10A20
3V2032 Lithium battery
7
5
8
29B137
Remote control visor clip
41A2828
217A238
41A5047-1
41A4353-1
41A5034
Manual rope & handle assy.
N
O
T
2-Conductor bell wire, white & white/red
Door bracket w clevis pin & fastener
Header bracket w/clevis pin & fastener
IC
E
10
9
Safety sensor kit (receiving and
sending eyes) with 3' 2-conductor bell
wire
Y
L
N
O
T
N
U
O
M
G
N
I
L
I
E
C
P
U
10
11
12
178B34
Straight door arm section
Curved door arm section
Safety sensor brackets (2)
NOT SHOWN
178B35
12
41A5266-1
11
41A2770-5
114A2537
Installation hardware bag
(includes hardware listed on page 5).
Owner's manual
33
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Motor Unit Assembly Parts
18
1
4
2
3
17
6
6
10
16
5
7
19
7
11
14
8
15
13
9
(Down)
Contact
LIMIT SWITCH ASSY.
Brown
Wire
D N
Grey
Wire
U P
12
Drive
Gear
Center Limit
Contact
(Up)
Contact
Yellow
Wire
KEY PART
NO. NO.
KEY PART
NO. NO.
DESCRIPTION
DESCRIPTION
12
13
14
15
16
17
41A5525-3
41A2818
41D3452
41A2822-1
41C4398A
Cover
1
2
41A4371
41A4885-5
Belt cap retainer
Gear and sprocket assy.,
Complete with: Spring washer;
thrust washer; retaining ring;
bearing plate; roll pins (2); drive
gear and worm gear; helical gear
w/retainer and grease
Drive/worm gear kit w/grease,
roll pins (2)
Line cord
End panel w/all labels
Light socket
Lens
Capacitor – 1/2 h.p.
Capacitor bracket
Terminal block w/screws
Universal replacement motor &
bracket assembly, Complete
with: Motor, worm, bracket,
bearing assembly, RPM sensor.
Limit switch drive & retainer
Limit switch assembly
Interrupter cup assembly
RPM sensor assembly
41A5483-4B Receiver logic board assembly
Complete with Logic board
41C5497
41C5548
3
41A2817
18
19
High voltage wire harness
Low voltage wire harness
End panel
4
5
6
7
8
9
10
11
41B4245
41A5484-1
4A1344
108D68
30B363
12A373
41A3150
41C4842
41D180-1
NOT SHOWN
Shaft bearing kit
Opener assembly hardware kit
(includes screws not designated
by a number in illustration)
41A2826-1
41A2825
34
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ACCESSORIES
1702LM
995LM
Remote Light Control:
Outside Quick Release:
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 Security✚™ remote.
Required for a garage with NO
access door. Enables homeowner to
open garage door manually from
outside by disengaging trolley.
2778BD
2770BD
8 Foot Complete Rail:
3-Button Security✚™ Remote Control:
973LM
974LM
970LM
To allow an 8 foot door to open fully.
Includes visor clip.
10 Foot Complete Rail:
4-Button Security✚™ Remote Control:
To allow a 10 foot door to open fully.
Includes visor clip.
3-Button Mini-Remote Control with
Security✚™:
41A5281
976LM
Extension Brackets:
With key ring and velcro fastening strip.
(Optional) For safety sensor
installation onto the wall or floor.
Model 98LM Motion Detecting Control Panel:
Multi-function door control with motion
sensor that automatically turns opener lights
on for 5 minutes when it detects a person
entering the garage. Sensor can be easily
deactivated when desired.
Wireless Keyless Entry with
Security✚™:
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.
LOCK
LIGHT
915LM
916LM
Garage Door Monitor:
Security for the largest door of your home!
Tells you if your garage door is open or
closed. Monitors up to 4 garage doors by
adding additional sensor modules.
CLOSED
OPEN
902LM/903LM
2 & 3 Door Multi-Function Wall
Control:
Ideal for homes with up to three
garage doors. Combine up to three
controls into one wall control panel for
a neat compact appearance.
Enhanced functions include Lock
Feature to lock out outside radio
signals while you are away from
home and turn opener lights on or
off from the control panel.
Garage Door Monitor Sensor:
Additional accessory sensor for homes with
multiple garage doors.
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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
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
INSTALLATION AND SERVICE INFORMATION IS AS
NEAR AS YOUR TELEPHONE SEVEN DAYS A WEEK.
SIMPLY DIAL OUR TOLL FREE NUMBER:
• PART NUMBER
• PART NAME
1-800-528-2817
HOURS: (Central Std. Time)
6:00 A.M. TO 7:00 P.M. - Monday through Friday
8:00 A.M. TO 6:00 P.M. - Saturday
• MODEL NUMBER
ADDRESS ORDERS TO:
THE CHAMBERLAIN GROUP, INC.
Technical Support Group
8:00 A.M. TO 4:30 P.M. - Sunday
6020 S. Country Club Road
Tucson, Arizona 85706
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:
1-800-528-2817
LIFTMASTER GARAGE DOOR OPENER ONE-YEAR 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 will be free from any defect in materials and/or workmanship for a period of 12 full months from the date of
purchase. Additionally, the motor and drive belt are warranted for the lifetime of the product. The product must be used in complete
accordance with Chamberlain’s instructions for installation, operation and care. The proper operation of this product is dependent on
your compliance with the Owner’s Manual instructions regarding installation, operation, maintenance and testing. Failure to
comply strictly with those instructions will void this warranty in its entirety. Please note that the safety reverse system, in order
to operate properly with your garage door, must be adjusted and periodically tested in accordance with the Owner’s Manual.
If, during the limited warranty period, it appears as though this product contains a defect which is covered by this limited warranty, CALL
OUR TOLL FREE SERVICE NUMBER, BEFORE DISMANTLING THIS PRODUCT, AT (1-800-528-2817). 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 the toll free
service number. Please include a brief description of the problem and a dated proof-of-purchase receipt with any product that is
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.
THIS LIMITED WARRANTY IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE, AND OF ANY OTHER
OBLIGATIONS OR LIABILITY ON SELLER’S PART. 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, USE OF UNAUTHORIZED PARTS OR
ACCESSORIES, UNAUTHORIZED REPAIRS,OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR
DISMANTLING OR REINSTALLING A REPAIRED OR REPLACED UNIT, REPLACEMENT OF BATTERIES AND LIGHT BULBS,
OR UNITS INSTALLED FOR NON-RESIDENTIAL USE. THE USE OF UNAUTHORIZED PARTS OR ACCESSORIES WILL VOID
THIS LIMITED WARRANTY. If you have any questions as to whether accessories or replacement parts are authorized, please
contact Chamberlain.
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 AND
HINGES. 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 THE USE OF, 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.
LIFETIME MOTOR AND BELT WARRANTY
The motor and belt are fully warranted for the lifetime of the product to the first-time purchaser.
© 2003, The Chamberlain Group, Inc.
114A2537G
All Rights Reserved
Printed in Mexico
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