Series Nine
ELECTRIC
WATER HEATER
USER’S GUIDE
Model Numbers
HRE2930T
HRE3930T
HRE2940L
HRE3940L
HRE2940S
HRE3940S
HRE2940T
HRE3940T
HRE2950S
HRE3950S
HRE2950T
HRE3950T
HRE2966T
HRE3966T
FOR POTABLE WATER
HEATING ONLY
GAMA certification applies to all residential
electric water heaters with capacities of 20 to
120 Gallons. Input rating of 12 Kw or less at a
voltage no greater than 250 V.
NOT SUITABLE FOR
SPACE HEATING
Caution:
WARNING
Read and Follow All
Safety Rules and
Operating Instructions
Before First Use of
This Product.
READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE
COVER AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR
OPERATING THIS WATER HEATER.
Save this Manual for Future Reference.
Printed in the U.S.A. 0104
Part No. 66001711
184741-000
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Safety Instructions (cont’d)
WARNING
WATER HEATERS EQUIPPED FOR ONE VOLTAGE
ONLY: This water heater is equipped for one type
voltage only. Check the rating plate near the bot-
tom access panel for the correct voltage. DO NOT
use this water heater with any voltage other than
the one shown on the model rating plate. Failure to
use the correct voltage can cause problems which
can result in DEATH, SERIOUS BODILY INJURY, OR
PROPERTY DAMAGE. If you have any questions or
doubts consult your electric company.
WARNING
HYDROGEN GAS: Hydrogen gas can be produced in
a hot water system that has not been used for a
long period of time (generally two weeks or more).
Hydrogen gas is extremely flammable and explo-
sive. To prevent the possibility of injury under these
conditions, we recommend the hot water faucet be
opened for several minutes at the kitchen sink
before any electrical appliances which are connect-
ed to the hot water system are used (such as a dish-
washer or washing machine). If hydrogen gas is pre-
sent, there will probably be an unusual sound simi-
lar to air escaping through the pipe as the hot
water faucet is opened. There must be no smoking
or open flame near the faucet at the time it is open.
CAUTION
WATER HEATERS EVENTUALLY LEAK: Installation of
the water heater must be accomplished in such a
manner that if the tank or any connections should
leak, the flow of water will not cause damage to the
structure. For this reason, it is not advisable to install
the water heater in an attic or upper floor. When
such locations cannot be avoided, a suitable drain
pan should be installed under the water heater.
Drain pans are available at your local hardware
store. Such a drain pan must have a minimum diam-
eter of at least 13⁄4 inches greater than the water
heater diameter and must be piped to an adequate
drain.
CAUTION
Never use this water heater unless it is completely
full of water. To prevent damage to the tank and
heating element, the tank must be filled with water.
Water must flow from the hot water faucet before
turning “ON” power.
3
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Table of Contents
Safety Instructions
.....................................................................................................................................2,3
Table of Contents...........................................................................................................................................4
Customer Information............................................................................................................................5
Product Specifications
.............................................................................................................................6
Accessories and Tools Needed
....................................................................................................7
Accessories............................................................................................................................................................................7
Tools .....................................................................................................................................................................................7
Instructions for Installation........................................................................................................8-17
Removing the Old Water Heater..........................................................................................................................................8
Locating the New Water Heater ..........................................................................................................................................9
Typical Installation................................................................................................................................................................9
The Convertible Lower Element........................................................................................................................................10
Water Piping.......................................................................................................................................................................11
T&P Valve and Pipe Insulation .......................................................................................................................................11
Temperature-Pressure Relief Valve .....................................................................................................................................12
Filling the Water Heater.....................................................................................................................................................13
Converting the Lower Element.....................................................................................................................................13-15
Wiring Diagrams................................................................................................................................................................16
Wiring ................................................................................................................................................................................17
Installation Checklist ..........................................................................................................................................................18
Service and Maintenance
............................................................................................................19-24
Temperature Regulation......................................................................................................................................................19
Thermostats........................................................................................................................................................................19
Thermostat Settings............................................................................................................................................................19
Thermostat Adjustment......................................................................................................................................................20
Anode Rod Inspection........................................................................................................................................................20
Temperature-Pressure Relief Valve Operation....................................................................................................................20
Draining..............................................................................................................................................................................21
Thermostat Removal/Replacement................................................................................................................................21,22
Element Cleaning and Replacement .............................................................................................................................22-24
Drain Valve Washer Replacement ......................................................................................................................................24
Service.................................................................................................................................................................................24
Troubleshooting
......................................................................................................................................25-27
Start Up Conditions............................................................................................................................................................25
Thermal Expansion........................................................................................................................................................25
Strange Sounds...............................................................................................................................................................25
Operational Conditions ................................................................................................................................................25, 26
Smelly Water..................................................................................................................................................................25
Air in Hot Water Faucets...............................................................................................................................................25
Rumbling Noise .............................................................................................................................................................25
High Temperature Shut Off System........................................................................................................................25, 26
Not Enough Hot Water.................................................................................................................................................26
Water is Too Hot ...........................................................................................................................................................26
Leakage Checkpoints.....................................................................................................................................................27
Repair Parts List.......................................................................................................................................28-34
Warranty....................................................................................................................................................................36
4
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Customer Information
NEC - National Electrical Code NFPA 70. This publica-
tion is available from your local government or public
library or electric company or by writing Underwriters
Laboratories Inc., 333 Pfingsten Road, Northbrook, IL
60062.
Thank You
for purchasing a Maytag water heater.
Properly installed and maintained, it should give you years of
trouble free service. It is strongly suggested that this new
water heater be professionally installed, call Maytag Customer
Service at 1-800-788-8899 for recommended installers.
• If after reading this manual you have any questions or do
not understand any portion of the instructions, call Maytag
Customer Service at 1-800-788-8899 for an authorized
servicer.
Abbreviations Found In This Instruction Manual
U.L. - Underwriters Laboratories Inc.
NEC - National Electrical Code
ANSI - American National Standards Institute
• Carefully plan the place where you are going to put the
water heater. Correct electrical wiring and connections are
very important in preventing death from possible electrical
shock and fires.
Examine the location to ensure the water heater complies
with the “Locating the New Water Heater” section.
• Read the “Safety Instructions” section, pages 2 and 3 of this
manual first and then the entire manual carefully. If you
don’t follow the safety rules, the water heater will not oper-
ate properly. It could cause DEATH, SERIOUS BODILY
INJURY AND/OR PROPERTY DAMAGE.
This manual contains instructions for the installation, oper-
ation, and maintenance of this electric water heater. It also
contains warnings throughout the manual that you must
read and be aware of. All warnings and all instructions are
essential to the proper operation of the water heater and
your safety. Since we cannot put everything on the first few
pages, READ THIS ENTIRE MANUAL BEFORE
ATTEMPTING TO INSTALL OR OPERATE THE
WATER HEATER.
• For California installation this water heater must be braced,
anchored, or strapped to avoid falling or moving during an
earthquake. See instructions for correct installation proce-
dures. Instructions may be obtained from the California
office of the State Architect, 400 P Street, Sacramento, CA
95814.
• Massachusetts Code requires this water heater to be
installed in accordance with Massachusetts 248-CMR 2.00:
State Plumbing Code and 248-CMR 5.00.
• The installation must conform with the instructions in this
manual; electric company rules; and Local Codes, or in the
absence of Local Codes, with the current edition of the
5
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Product Specifications
Model
HRE2930T
HRE3930T
HRE2940L
HRE3940L
HRE2940S
HRE3940S
HRE2940T
HRE3940T
Tank Capacity
In Gallons
30
40
40
40
Element
Wattage
Upper
3800
3800
3800
3800
at 240 Volt
Lower 3800
Upper
5500
25
3800
5500
3800
5500
3800
5500
Recovery Rate
In Gals Per Hr.
@ 90°F Rise
17.3
17.3
17.3
17.3
Lower 17.3
17.3
25
17.3
25
17.3
25
Diameter
Height
18″
25″
201/2
″
18″
591/2
″
461/2
″
321/4
″
44″
Maximum Fuse or
Circuit Breaker Size
20
12
30
10
20
12
30
10
20
12
30
10
20
12
30
10
Minimum
Wire Size (Gauge)
Model
HRE2950S
HRE3950S
HRE2950T
HRE3950T
HRE2966T
HRE3966T
Tank Capacity
In Gallons
50
50
66
Element
Wattage
Upper
3800
3800
3800
at 240 Volt
Lower 3800
Upper
5500
25
3800
5500
3800
5500
Recovery Rate
In Gals Per Hr.
@ 90°F Rise
17.3
17.3
17.3
Lower 17.3
17.3
25
17.3
25
Diameter
Height
22″
48″
201/2
″
22″
601/4
″
54″
Maximum Fuse or
Circuit Breaker Size
20
12
30
10
20
12
30
10
20
12
30
10
*Minimum
Wire Size (Gauge)
*Wiring size based on standard 60°C copper wire. If distance from fuse box to water heater is more than 90 feet, refer to your local
electrical code.
6
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Accessories and Tools Needed
Accessories
To simplify the installation Maytag has available the installa-
tion parts shown below. You may or may not need all of these
accessories depending on your type of installation. Call
Maytag Customer Service at 1-800-788-8899 for an autho-
rized installer.
DRAIN PANS AVAILABLE IN 22″ DIAMETER (PART
NUMBER 66001011) FOR WATER HEATERS HAVING
A DIAMETER 20″ OR LESS, 24” DIAMETER (PART
NUMBER 66001105) FOR WATER HEATERS HAVING
A DIAMETER 22” OR LESS AND AVAILABLE IN 28″
DIAMETER (PART NUMBER 66001012) FOR WATER
HEATERS HAVING A DIAMETER 26.25″ OR LESS
EXPANSION TANKS FOR THERMAL EXPANSION
CONDITIONS AVAILABLE IN 2 GALLON (PART
NUMBER 66001013) AND 5 GALLON (PART
NUMBER 66001014) CAPACITY
ADDITIONAL TOOLS NEEDED
WHEN SWEAT SOLDERING
Tools
You may or may not need all of these tools, depending on your
type of installation. These tools can be purchased at your local
Maytag store.
• Tubing Cutters or Hacksaw
• Propane Torch
• Soft Solder
• Pipe Wrenches (2) 14″
• Screwdriver
• Solder Flux
• Emery Cloth
• 6 Foot Tape or Folding Rule
• Garden Hose
• Wire Brushes
• Drill
• Pipe dope or Teflon Tape
HACKSAW
6 FOOT TAPE
GARDEN HOSE
3/4″ WIRE BRUSH
SLOT-HEAD SCREW DRIVER
PIPE
WRENCH
1/2″ WIRE BRUSH
PHILLIPS SCREWDRIVER
PROPANE TORCH
ROLL OF LEAD FREE
SOFT SOLDER
PIPE DOPE
(SQUEEZE TUBE)
SOLDER FLUX
ROLL OF EMERY
CLOTH
TUBING CUTTER
ROLL OF TEFLON TAPE
(Use only on water connec-
tions)
DRILL
7
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Instructions for Installation
Removing the Old Water Heater
Turn “OFF” electrical supply to the water heater.
a. If you have copper piping to the water heater, the two
copper water pipes can be cut with a hacksaw approxi-
mately four inches away from where they connect to
the water heater. This will avoid cutting off the pipes
too short. Additional cuts can be made later if neces-
sary. Disconnect the temperature-pressure relief valve
drain line. When the water heater is drained, discon-
nect the hose from the drain valve. Close the drain
valve. The water heater is now completely disconnect-
ed and ready to be removed.
1
5
Turn “OFF” the water supply to the
water heater at the water shutoff valve
or water meter.
2
2
5
1
4
Attach a hose to the water heater drain
valve and put the other end in a floor
drain or outdoors. Open the water
heater drain valve. Open a nearby hot
water faucet which will relieve pressure
in the water heater and speed draining.
3
b. If you have galvanized pipe to the water
5
heater, loosen the two galvanized pipes
with a pipe wrench at the union in each
line. Also disconnect the piping remain-
ing to the water heater. These pieces
should be saved since they may be needed
when reconnecting the new water heater.
Disconnect the temperature-pressure
relief valve discharge pipe. When the
water heater is drained, disconnect the
hose from the drain valve. Close the drain
valve. The water heater is now completely
disconnected and ready to be removed.
WARNING
The water passing out of the drain
valve may be extremely hot. To
avoid being scalded, make sure all
connections are tight and that the
water flow is directed away from
any person.
3
Check again to make sure the electrical supply is turned
4
“OFF” to the water heater. Then disconnect the electri-
cal supply connection from the water heater junction
box.
CAUTION
Mineral buildup or sediment may have accumulated
in the old water heater. This causes the water
heater to be much heavier than normal and this
residue, if spilled out, could cause staining.
8
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Instructions for Installation (cont’d)
Locating The New Water
CAUTION
WATER HEATERS EVENTUALLY LEAK: Installation of the
Heater
water heater must be accomplished in such a manner
that if the tank or any connections should leak, the flow
of water will not cause damage to the structure. For this
reason, it is not advisable to install the water heater in
an attic or upper floor. When such locations cannot be
avoided, a suitable drain pan should be installed under
the water heater. Drain pans are available at your local
hardware store. Such a drain pan must have a minimum
diameter of at least 13⁄4 inches greater than the water
heater diameter and must be piped to an adequate
drain.
You should carefully choose an indoor location for the new
water heater, because the placement is a very important con-
sideration for the safety of the occupants in the building and
for the most economical use of the appliance. This water
heater is not intended for outdoor installation.
Whether replacing an old water heater or putting the water
heater in a new location, the following critical points must be
observed.
CAUTION
INSTALLATION IN RESIDENTIAL GARAGES: The water
heater must be located and/or protected so it is not
subject to physical damage by a moving vehicle.
1. The location selected should be indoors as close to and as
centralized with the water piping system as possible. This
water heater, as well as all water heaters, will eventually
leak. Do not install without adequate drainage provisions
where water flow will cause damage.
2. The location selection must provide adequate clearances for
servicing and proper operation of the water heater.
VACUUM RELIEF REQUIRED BY SOME CODES
(REFER TO LOCAL CODES)
SHUTOFF VALVE
HOT
Typical Installation
WATER
COLD WATER INLET
OUTLET
CHECK ALL CONNECTIONS FOR LEAKS.
CONSULT THE LOCAL UTILITY COMPANY TO EXAM-
INE INSTALLATION FOR PROPRIETY AND SAFETY.
ELBOW
UNION
UNION
* WARNING
3/4″ THREADED
TEMPERED
WATER
CONNECTORS
HOTTER WATER CAN SCALD: Water heaters are
intended to produce hot water. Water heated to a
temperature which will satisfy clothes washing,
dish washing, and other sanitizing needs can scald
and permanently injure you upon contact. Some
people are more likely to be permanently injured by
hot water than others. These include the elderly,
children, the infirm, or physically/mentally handi-
capped. If anyone using hot water in your home fits
into one of these groups or if there is a local code or
state law requiring a certain temperature water at
the hot water tap, then you must take special pre-
cautions. In addition to using the lowest possible
temperature setting that satisfies your hot water
needs, a means such as a mixing valve, should be
used at the hot water taps used by these people or
at the water heater. Mixing valves are available at
plumbing supply or hardware stores. Follow manu-
facturers instructions for installation of the valves.
Before changing the factory setting on the thermo-
stat, read the “Temperature Regulation” section in
this manual.
OUTLET
*MIXING VALVE
ELECTRICAL
JUNCTION BOX
TEMPERATURE-
PRESSURE
RELIEF VALVE
ACCESS COVER
ACCESS COVER
DISCHARGE
PIPE
(Do not cap
or plug)
DRAIN VALVE
6″ AIR GAP
TO SUITABLE DRAIN
9
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Instructions for Installation (cont’d)
The Convertible Lower
Element
The Upper Element, is a conventional 3800 watt element
which only operates at its rated wattage on 240 volts. (See rat-
ing plate on water heater).
The Lower Element of the water heater can be converted
from operation at 3800 watts to 5500 watts on a 240 volt
system.
Read and follow water heater warnings and instructions.If
after reading these instructions in this manual, if you do not
understand any portion, call Maytag Customer Service at 1-
800-788-8899 for an authorized servicer.
WARNING
Before making the conversion to 5500 watts, check
the (1) power supply…must be 240 volts, (2)
wiring...10 gauge AWG @ Type TW, 60°C or equiva-
lent, and (3) Circuit breakers or fusing…capable of
30 amp loading. Also, the installation must conform
with this manual, local codes and electric utility
rules. Failure to comply can result in DEATH, SERI-
OUS BODILY INJURY, OR PROPERTY DAMAGE.
NOTE: Whether or not the element conversion is made the
model rating plate must be marked. Using a hard point ink
pen, check the appropriate block within the model rating
plate, which is located adjacent to the lower access panel.
10
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Instructions for Installation (cont’d)
2. Look at the top cover of the water heater. The cold water inlet
is marked cold. Connect the cold water pipe to the cold water
inlet of the water heater.
Water Piping
* WARNING
NOTE: Your water heater is super insulated to minimize heat
loss from the tank. Further reduction in heat loss can be accom-
plished by insulating the hot water lines from the water heater.
HOTTER WATER CAN SCALD: Water heaters are intend-
ed to produce hot water. Water heated to a tempera-
ture which will satisfy clothes washing, dish washing,
and other sanitizing needs can scald and permanently
injure you upon contact. Some people are more likely
to be permanently injured by hot water than others.
These include the elderly, children, the infirm, or physi-
cally/mentally handicapped. If anyone using hot water
in your home fits into one of these groups or if there is
a local code or state law requiring a certain tempera-
ture water at the hot water tap, then you must take
special precautions. In addition to using the lowest pos-
sible temperature setting that satisfies your hot water
needs, a means such as a mixing valve, should be used
at the hot water taps used by these people or at the
water heater. Mixing valves are available at plumbing
supply or hardware stores. Follow manufacturers
instructions for installation of the valves. Before chang-
ing the factory setting on the thermostat, read the
“Temperature Regulation” section in this manual.
COLD INLET
WATER LINE
SHUT-OFF
VALVE
HOT OUTLET TO
HOUSE
THREADED TO
SWEAT COUPLING
THREADED TO
SWEAT COUPLING
3/4″ THREADED
3/4″ THREADED
NIPPLE
NIPPLE
HOT
COLD
TEMPERATURE-
PRESSURE RELIEF
VALVE
*See illustration on page 9 for mixing valve usage.
If a water heater is installed in a closed water supply system; such
as one having a back-flow preventer, check valve, water meter
with a check valve, etc. in the cold water supply; means shall be
provided to control thermal expansion. Contact the local utility
or call Maytag Customer Service at 1-800-788-8899 for an
authorized servicer on how to control this situation.
DISCHARGE PIPE
(Do not cap or plug)
NOTE: To protect against untimely corrosion of hot and cold
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.
6″ AIR GAP
FLOOR DRAIN
NOTE: The secondary anode rod/hot outlet nipple and the
cold inlet nipple are packaged separately with the water heater.
The above parts must be installed in the appropriate HOT
and COLD water connection locations.
T&P Valve and Pipe Insulation
(on Selected Models)
The illustration shows the attachment of the water piping to the
water heater. The water heater is equipped with 3⁄4 inch water
connections.
Remove insulation for T&P Valve
and pipe connections from carton.
Fit pipe insulation over the
NOTE: If using copper tubing, solder tubing to an adapter
before attaching the adaptor to the cold water inlet connec-
tion. Do not solder the cold water supply line directly to the
cold water inlet. It will harm the dip tube and damage the tank.
incoming cold water line and the
hot water line. Make sure that the
insulation is against the top cover of the heater.
Fit T&P Valve insulation over valve. Make sure that the insula-
tion does not interfere with the lever of the T&P valve.
1. Look at the top cover of the water heater. The water outlet is
marked hot. Connect the hot water pipe to the hot water out-
let of the water heater.
Secure all insulation using tape.
11
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Instructions for Installation (cont’d)
Temperature-Pressure Relief Valve
WARNING
WARNING
At the time of manufacture this water heater was provided
with a combination temperature-pressures relief valve cer-
tified by a nationally recognized testing laboratory that
maintains periodic inspection of production of listed equip-
ment or materials, as meeting the requirements for Relief
Valves and Automatic Gas Shutoff Devices for Hot Water
Supply Systems, and the current edition of ANSI Z21.22 •
CSA 4.4 and the code requirements of ASME. If replaced,
the valve must meet the requirements of local codes, but
not less than a combination temperature and pressure
relief valve certified as meeting the requirements for Relief
Valves and Automatic Gas Shutoff Devices for Hot Water
Supply Systems, ANSI Z21.22 • CSA 4.4 by a nationally rec-
ognized testing laboratory that maintains periodic inspec-
tion of production of listed equipment or materials.
The valve must be marked with a maximum set pressure
not to exceed the marked hydrostatic working pressure of
the water heater (150 lbs./sq. in.) and a discharge capacity
not less than the water heater input rate as shown on the
model rating plate. (Electric heaters - watts divided by
1000 x 3412 equal BTU/Hr. rate.)
The temperature-pressure relief valve must be manu-
ally operated at least once a year. Caution should be
taken to ensure that (1) no one is in front of or
around the outlet of the temperature-pressure relief
valve discharge line, and (2) the water manually dis-
charged will not cause any bodily injury or property
damage because the water may be extremely hot.
If after manually operating the valve, it fails to com-
pletely reset and continues to release water, immedi-
ately close the cold water inlet to the water heater,
follow the draining instructions, and replace the
temperature-pressure relief valve with a new one.
COLD
HOT
COLD
HOT
Your local jurisdictional authority, while mandating the use
of a temperature-pressure relief valve complying with ANSI
Z21.22 • CSA 4.4 and ASME, may require a valve model dif-
ferent from the one furnished with the water heater.
Compliance with such local requirements must be satisfied
by the installer or end user of the water heater with a
locally prescribed temperature-pressure relief valve
installed in the designated opening in the water heater in
place of the factory furnished valve.
CONDUIT
TEMPERATURE-
PRESSURE
RELIEF VALVE
DISCHARGE PIPE
(Do not cap or plug)
For safe operation of the water heater, the relief valve
must not be removed from it’s designated opening or
plugged.
The temperature-pressure relief valve must be installed
directly into the fitting of the water heater designated for
the relief valve. Position the valve downward and provide
tubing so that any discharge will exit only within 6 inches
above, or at any distance below the structural floor. Be cer-
tain that no contact is made with any live electrical part.
The discharge opening must not be blocked or reduced in
size under any circumstances. Excessive length, over 30
feet, or use of more than four elbows can cause restriction
and reduce the discharge capacity of the valve.
6″ AIR GAP
FLOOR DRAIN
WARNING “RELIEF VALVE OPENING”
No valve or other obstruction is to be placed between the
relief valve and the tank. Do not connect tubing directly to
discharge drain unless a 6″ air gap is provided. To prevent
bodily injury, hazard to life, or property damage, the relief
valve must be allowed to discharge water in quantities
should circumstances demand. If the discharge pipe is not
connected to a drain or other suitable means, the water
flow may cause property damage.
This water heater is provided with a combination Temperature-Pressure Relief Valve listed as complying with
the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANS Z21.22
and the code requirements of ASME.
Your local jurisdictional authority, while mandating the use of a Temperature-Pressure Relief Valve complying
with ANS Z21.22 and ASME, may require a valve model different from the one furnished with the water heater.
Compliance with such local requirements must be satisfied by the installer or end user of the water heater with
a locally prescribed Temperature-Pressure Relief Valve installed in the designated opening in the water
heater.
TANK
JACKET
BRASS
COUPLING
TANK
FITTING
T&P RELIEF
TEMPERATURE-
PRESSURE
RELIEF VALVE
VALVE PROBE
MUST EXTEND
INTO TANK
The Discharge Pipe:
• Must not be smaller in size than the outlet pipe size of
the valve, or have any reducing couplings or other
restrictions.
(13/8" x 3
BRASS
/4")
T&P
SHANK
LENGTH
NIPPLE
• Must not be plugged or blocked.
●
If a short shank (less than 2") temperature-pressure relief valve is to be installed
(as shown), a nipple and coupling must be used.
If a long shank (2" or longer) is to be installed, do not use the nipple and coupling.
• Must be of material listed for hot water distribution.
• Must be installed so as to allow complete drainage of
both the temperature-pressure relief valve, and the dis-
charge pipe.
●
“Install Temperature-Pressure protective equipment required by local codes, but not less than a combina-
tion Temperature-Pressure Relief Valve certified as meeting the requirements for Relief Valves and
Automatic Gas Shutoff Devices for Hot-Water Supply Systems, ANS Z21.22 by a nationally recognized test-
ing laboratory that maintains periodic inspection of production of listed equipment or materials. The valve
must be oriented, provided with tubing, or otherwise installed so that discharge can exit only within 6 inches
above, or at any distance below the structural floor, and cannot contact any live electrical part.”
For safe operation of the water heater, the Relief Valve must not be removed or plugged.
• Must terminate at an adequate drain.
• Must not have any valve between the relief valve and
tank.
See manual heading - “Temperature-Pressure Relief Valve” for installation and maintenance of Relief
Valve, discharge pipe and other safety precautions.
12
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Instructions for Installation (cont’d)
Filling the Water Heater
To fill the water heater with water:
1. Close the water heater drain valve by turning the handle to
WARNING
Before making the conversion to 5500 watts, check
the right (clockwise). The drain valve is on the lower front
of the water heater.
2. Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open
when the water heater is in use.
3. To insure complete filling of the tank, allow air to exit by
opening the nearest hot water faucet. Allow water to run
until a constant flow is obtained. This will let air out of the
water heater and the piping.
the (1) power supply...must be 240 volts, (2)
wiring...10 gauge AWG @ Type TW, 60°C or equiva-
lent, and (3) Circuit breakers or fusing...capable of
30 amp loading. Also, the installation must con-
form with this Manual, local codes and electric utili-
ty rules. FAILURE TO COMPLY CAN RESULT IN
DEATH, SERIOUS BODILY INJURY OR PROPERTY
DAMAGE.
CAUTION
Never use this water heater unless it is completely
full of water. To prevent damage to the tank and
heating element, the tank must be filled with
water. Water must flow from the hot water faucet
before turning “ON” power.
4. Check all new water piping for leaks. Repair as needed.
Converting the Lower
Element
These instructions only cover the conversion of the convert-
ible element, read this entire manual before attempting to
install or operate the water heater. The water heater is factory
set to operate at 3800 watts. The lower element can be con-
verted to operate at 5500 watts. Refer to “The Convertible
Lower Element” section.
NOTE: Whether or not the element conversion is made the
model rating plate must be marked. Using a hard point ink
pen, check the appropriate block within the model rating
plate, which is located adjacent to the lower access panel.
Necessary element conversion parts are located in a small bag
contained within the large plastic manual envelope attached
to the side of the water heater.
The Upper Element is a conventional 3800 watt element
which only operates at its rated wattage on 240 volts. (See rat-
ing plate on water heater).
The Lower Element of the water heater can be converted
from operation at 3800 watts to 5500 watts on a 240 volt sys-
tem.
CONVERSION PARTS
5500 W
If after reading these instructions and this manual, if you do
not understand any portion, call Maytag Customer Service at
1-800-788-8899 for an authorized servicer.
SCREW
BUSS BAR
13
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Instructions for Installation (cont’d)
Converting the Lower Element
(cont’d)
1. Before beginning the conversion turn “OFF” electric
power supply to the water heater.
4. Lift out the tab as shown to unclip the terminal cover from
the thermostat. The terminal cover can now be removed from
the thermostat.
Lift out tab to unclip
terminal cover from
thermostat.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. FAILURE TO DO THIS COULD
RESULT IN DEATH, SERIOUS BODILY INJURY, OR
PROPERTY DAMAGE.
2. The convertible element is located behind the lower access
panel of the water heater. Remove the two screws securing
the access panel, and remove panel.
5. Remove the screws from terminal 2 of the element, and
move the looped end of the wire aside.
3. Remove the block of insulation and pad to expose the
terminal cover.
6. The buss bar is labeled 5500 W. Place the buss bar over ter-
minals 2 and 3 with the 5500 W visible. Install the extra
screw provided into terminal 3.
5500 W
14
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Instructions for Installation (cont’d)
Converting the Lower Element
(cont’d)
7. The wire removed from terminal 2 has a looped end. It
must remain looped and now be placed (as shown) on top
of the buss bar, over the opening of terminal 2, and secured
using the remaining screw.
11. Replace the access panel.
8. Tighten terminals 2 and 3 to ensure proper electrical con-
nection.
12. Complete wiring to the water heater, or if completed,
turn “ON” electric power to the water heater after filling
the tank with water.
WARNING
Failure to tighten terminal screws can cause a fire
which can result in DEATH, SERIOUS BODILY INJURY,
OR PROPERTY DAMAGE.
9. Replace the terminal cover on the thermostat making sure
that the locking tabs on the terminal cover are in place.
WARNING
Make sure the thermostat is flush against the tank,
the terminal cover is in place, and the insulation is
replaced. Failure to do so can result in DEATH, SERI-
OUS BODILY INJURY, OR PROPERTY DAMAGE.
10. Place the insulation block and pad back in place so that it
completely covers the thermostat and element.
CAUTION
Never use this water heater unless it is completely
full of water. To prevent damage to the tank and
heating element, the tank must be filled with water.
Water must flow from the hot water faucet before
turning “ON” power.
15
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Instructions for Installation (cont’d)
TO ELECTRIC
POWER SUPPLY
Wiring Diagrams
STANDARD WIRING FOR
BLACK
2 WIRE LEAD WATER HEATERS
NON-SIMULTANEOUS OPERATION
240 VOLT DOUBLE ELEMENT
RED
UPPER E.C.O. &
THERMOSTAT
UPPER
ELEMENT
LOWER
HEATING ELEMENT
WIRING FOR 3 WIRE LEAD WATER
HEATERS NON-SIMULTANEOUS OPER-
ATION 240 VOLT DOUBLE ELEMENT
YELLOW
UPPER
HEATING ELEMENT
LOWER
HEATING ELEMENT
*Note: Some Lower Hi-Temp Limit switches may have 4 terminals. Use only the 2 terminals on left.
16
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Instructions for Installation (cont’d)
Wiring
C. Flexible metal conduit or 3 metallic tubing shall be permit-
CAUTION
ted for grounding if all the following conditions are met:
1. The length in any ground return path does not exceed
6 feet.
2. The circuit conductors contained therein are protected
by overcurrent devices rated at 20 amperes or less.
3. The conduit or tubing is terminated in fittings
approved for grounding.
Never use this water heater unless it is completely
full of water. To prevent damage to the tank and
heating element, the tank must be filled with
water. Water must flow from the hot water faucet
before turning on power.
You must provide all wiring of the proper size outside of the
water heater. You must obey local codes and electric company
requirements when you install this wiring.
For complete grounding details and all allowable exceptions,
refer to the current edition of the NEC - National Electrical
Code NFPA 70.
If you are not familiar with electric codes and practices, or if
you have any doubt, even the slightest doubt, in your ability to
connect the wiring to this water heater, obtain the service of a
competent electrician. Call Maytag Customer Service at
1-800-788-8899 for an authorized servicer.
4. A standard 1⁄2″ conduit opening has been made in the water
heater junction box for the conduit connection.
5. Wiring Diagrams (See “Wiring Diagrams” Section) have
been supplied showing the two most common types of con-
nections between the water heater and the power supply.
You can easily see which type connection you have by
removing the junction box cover on top of the water heater.
A. Two Wire Connection Diagrams: is the most common
requiring you to simply connect red to red, black to black,
and the ground wire to the green ground screw in the junc-
tion box of the water heater.
WARNING
WATER HEATERS EQUIPPED FOR ONE VOLTAGE
ONLY: This water heater is equipped for one type
voltage only. Check the rating plate near the bot-
tom access panel for the correct voltage. DO NOT
use this water heater with any voltage other than
the one shown on the model rating plate. Failure to
use the correct voltage can cause problems which
can result in DEATH, SERIOUS BODILY INJURY, OR
PROPERTY DAMAGE. If you have any questions or
doubts consult your electric company.
B. Three Wire Connection Diagram: is used when you are
connecting the water heater to power a supply that has a
“Time Clock” or “Off Peak” Meter. To make these connec-
tions refer to block 1 or 2 in this wiring diagram for the type
of system you have.
NOTE: If you have purchased a three wire connection
water heater but you are not on a “Time Clock” or “Off
Peak” meter and have a standard two wire connection
power supply, simply follow the connection diagram in
block 3 of the Three Wire Connection Diagram.
CAUTION
If wiring from your fuse box or circuit breaker box
was aluminum for your old water heater, replace it
with copper wire. If you wish to reuse the existing
aluminum wire, have the connection at the water
heater made by a competent electrician. Call
Maytag Customer Service at 1-800-788-8899 for an
authorized servicer.
6. Use wire nuts and connect the power supply wiring to the
wires inside the water heater’s junction.
1. Provide a way to easily shut off the electric power when
working on the water heater. This could be with a circuit
breaker or fuse block in the entrance box or a separate dis-
connect switch.
7. The water heater must be electrically “grounded” by the
installer. A green ground screw has been provided on the
water heater's junction box. Connect ground wire to this
location.
2. Install and connect a circuit directly from the main fuse or
circuit breaker box. This circuit must be the right size and
have its own fuse or circuit breaker. Refer to the chart in
the “Product Specifications” section for the correct size
wire and fuse or circuit breaker.
8. Replace the wiring junction cover using the screw provided.
WIRE
NUTS
3. If metal conduit is used for the grounding conductor:
A. The grounding electrode conductor shall be of copper,
aluminum, or copperclad aluminum. The material shall
be of one continuous length without a splice or joint.
B. Rigid metal conduit, intermediate metal conduit, or
electrical metallic tubing may be used for the grounding
means if conduit or tubing is terminated in fittings
approved for grounding.
CONDUIT
GREEN
GROUND
SCREW
17
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Instructions for Installation (cont’d)
Installation Checklist
COLD
HOT
1. Whether or not the element conversion is made, the model
rating plate must be marked. Using a hard point ink pen,
check the appropriate block within the model rating plate,
which is located adjacent to the lower access panel.
2. Is the fuse or circuit breaker size correct as shown in the
COLD
HOT
chart in the “Product Specifications” section?
CONDUIT
3. Are the wires from the circuit breaker or fuse service to the
water heater’s junction box on the correct wire size (gauge) as
shown in the chart in the “Product Specifications” section?
TEMPERATURE-
PRESSURE
RELIEF VALVE
4. Is the new temperature-pressure relief valve properly
installed, and piped to an adequate drain? See
“Temperature-Pressure Relief Valve” in the “Instructions
for Installation” section.
DISCHARGE PIPE
(Do not cap or
plug)
5. Is the water heater completely filled with water? See
“Filling the Water Heater” instructions in the “Instructions
for Installation” section.
6. Will a water leak damage anything? See “Locating the
New Water Heater” in the “Instructions for Installation”
section.
6″ AIR GAP
7. Are the cold and hot water lines connected to the water
heater correctly? See “Water Piping” instructions in the
“Instructions for Installation” section.
FLOOR DRAIN
8. Is there adequate clearance for maintenance around the
water heater?
9. Do you need to call your electric company to check your
wiring?
MODEL RATING PLATE
18
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Service and Maintenance
Temperature Regulation
WARNING
LOWER THERMOSTAT
WITH HIGH LIMIT
HOTTER WATER CAN SCALD: Water heaters are
intended to produce hot water. Water heated to a
temperature which will satisfy clothes washing,
dish washing, and other sanitizing needs can scald
and permanently injure you upon contact. Some
people are more likely to be permanently injured by
hot water than others. These include the elderly,
children, the infirm, or physically/mentally handi-
capped. If anyone using hot water in your home fits
into one of these groups or if there is a local code or
state law requiring a certain temperature water at
the hot water tap, then you must take special pre-
cautions. In addition to using the lowest possible
temperature setting that satisfies your hot water
needs, a means such as a mixing valve, should be
used at the hot water taps used by these people or
at the water heater. Mixing valves are available at
plumbing supply or hardware stores. Follow manu-
facturers instructions for installation of the valves.
Before changing the factory setting on the thermo-
stat, read the “Temperature Regulation” section in
this manual.
LOWER THERMOSTAT
WITHOUT HIGH LIMIT
LOWER THERMOSTAT ADJUSTABLE
BEHIND LOWER ACCESS PANEL
Temperature Settings
WARNING
Never allow small children to use a hot water tap,
or to draw their own bath water. Never leave a
child or handicapped person unattended in a bath-
tub or shower.
HOT–Is a thermostat setting of approximately 120°F,
which will supply hot water at the most eco-
nomical temperatures.
A–Is a thermostat setting of approximately 130°F.
B–Is a thermostat setting of approximately 140°F.
C–Is a thermostat setting of approximately 150°F.
Thermostats
The thermostats of this water heater have been factory set at a
position which approximates 120°F (HOT) to reduce the risk
of scald injury.
VERY HOT–Is a thermostat setting of approximately 160°F.
It is recommended that the dial be set lower
whenever possible.
The upper and lower thermostats are factory set at a position
which approximates 120°F (HOT) and are adjustable if a dif-
ferent water temperature is desired. Read all warnings in this
manual and on the water heater before proceeding.
NOTE: Water temperature range of 120°–140°F recom-
mended by most dishwasher manufacturers.
Time to Produce
2nd & 3rd Degree
Temperature Setting
Burns on Adult Skin
About 1/2 seconds
About 1-1/2 seconds
Less than 5 seconds
About 30 seconds
160°F
150°F
140°F
130°F
120°F
More than 5 minutes
UPPER THERMOSTAT ADJUSTABLE
BEHIND UPPER ACCESS PANEL
19
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Service and Maintenance (cont’d)
Thermostat Adjustments
replaced more often than an anode rod that appears to be
The upper and lower thermostats have been factory set at
HOT (approximately 120°F) to reduce the risk of scald injury.
intact. Replacement of a depleted anode rod can extend the
life of your water heater. Inspection should be conducted by a
qualified service technician, and at a minimum should be
checked annually after the warranty period.
The upper and lower thermostats are adjustable if a different
water temperature is desired. Read all warnings in the
“Temperature Regulation” section before proceeding.
NOTE: It is not necessary to adjust the upper thermostat.
However, if it is adjusted above the factory set point of
120°F (HOT) it is recommended that it not be set higher
than the lower thermostat setting.
Temperature-Pressure Relief
Valve Operation
The temperature-pressure relief valve must be manually oper-
ated at least once a year.
To adjust the temperature setting for both upper and lower
thermostats, proceed as follows:
TEMPERATURE-PRESSURE
RELIEF VALVE
1. Turn “OFF” the electric power to the water heater at the
junction box.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE.
DISCHARGE PIPE
WARNING
The temperature-pressure relief valve must be
manually operated at least once a year. Caution
should be taken to ensure that (1) no one is in front
of or around the outlet of the temperature-pres-
sure relief valve discharge line, and (2) the water
manually discharged will not cause any property
damage or bodily injury. The water may be
extremely hot.
If after manually operating the valve, it fails to
completely reset and continues to release water,
immediately close the cold water inlet to the water
heater, follow the draining instructions, and
replace the temperature-pressure relief valve with
a new one.
2. Take off the access panel, insulation block and pad.
3. The slotted adjustment (using a screwdriver) can be turned
clockwise (
) to increase the temperature setting or
counter clockwise (
setting.
) to decrease the temperature
4. Replace the insulation block, pad and access panel.
5. Turn “ON” the power supply.
Failure to install and maintain a new properly listed tempera-
ture-pressure relief valve will release the manufacturer from
any claim which might result from excessive temperature or
pressure.
Anode Rod Inspection
The anode rod is used to protect the tank from corrosion.
Most hot water tanks are equipped with an anode rod. The
submerged rod sacrifices itself to protect the tank. Instead of
corroding the tank, water ions attack and eat away the anode
rod. This does not affect the water’s taste or color. The rod
must be maintained to keep the tank in operating condition.
WARNING
If the temperature-pressure relief valve on the
appliance weeps or discharges periodically, this
may be due to thermal expansion. Your water
heater may have a check valve installed in the
water line or a water meter with a check valve. Call
Maytag Customer Service at 1-800-788-8899 for an
authorized servicer. Do not plug the temperature-
pressure relief valve.
Anode deterioration depends on water conductivity, not nec-
essarily water condition. A corroded or pitted anode rod indi-
cates high water conductivity and should be checked and/or
20
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Service and Maintenance (cont’d)
Draining
Thermostat
Removal/Replacement
The water heater should be drained if being shut down during
freezing temperatures. Also periodic draining and cleaning of
sediment from the tank may be necessary.
1. Turn “OFF” the electrical power to the water heater at the
junction box.
1. Before beginning turn “OFF” the electric power supply to
the water heater.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE.
2. Remove the access panel and the insulation block and pad.
3. Lift out the tab as shown below to unclip the terminal cover
from the thermostat. The terminal cover can now be
removed from the thermostat.
2. CLOSE the cold water inlet valve to the water heater.
3. OPEN a nearby hot water faucet and leave open to allow
for draining.
4. Connect a hose to the drain valve and terminate to an ade-
quate drain or outdoors.
Lift out tab to unclip
terminal cover from
thermostat.
5. OPEN the water heater drain valve to allow for tank
draining.
NOTE: If the water heater is going to be shut down and
drained for an extended period, the drain valve should be
left open with hose connected allowing water to termi-
nate to an adequate drain.
6. Close the drain valve.
7. Follow “Filling the Water Heater” instructions in the
“Instructions for Installation” section.
LOWER THERMOSTAT
WITHOUT HIGH LIMIT
UPPER OR LOWER
THERMOSTAT WITH
HIGH LIMIT
8. Turn “ON” power to the water heater.
4. Remove the two wires attached to the thermostat.
CAUTION
5. Remove the thermostat from behind the thermostat bracket.
6. Disconnect wires from thermostat and slide out of the bracket.
Never use this water heater unless it is completely
full water. To prevent damage to the tank and heat-
ing element, the tank must be filled with water.
Water must flow from the hot water faucet before
turning “ON” power.
7. Place the new lower thermostat in the bracket making sure it
fits firmly against the tank.
8. Attach the wires to the new thermostat.
NOTE: Some of the terminals may require straight-in
wiring through an eye-opening. If wires are now looped, re-
cut and strip wire 3⁄8″ to a straight length and insert.
21
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Service and Maintenance (cont’d)
Thermostat Removal (cont’d)
3. Attach a hose to the water heater drain valve and put the
9. Put plastic terminal cover back in place.
other end in a floor drain or outdoors. Open the water
heater drain valve. Open a nearby hot water faucet which
will relieve pressure in the water heater and speed draining.
10. Replace the insulation block and pad to cover the thermostat.
11. Replace access panel, then turn the electric power “ON”.
Element Cleaning/
Replacement
NOTE: These instructions are written for element cleaning
and element replacement for the lower element. If it is nec-
essary to clean or replace the upper element, then repeat
these instructions.
WARNING
The water passing out of the drain valve may be
extremely hot. To avoid being scalded, make sure all
connections are tight and that the water flow is
directed away from any person.
To remove the element from your tank in order to clean or
replace it:
4. Remove the two screws securing the access panel, and
remove panel.
1. Before beginning turn “OFF” the electric power supply to
the water heater.
WARNING
5. Remove the block of insulation and pad to expose the
terminal cover.
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE.
2. Turn off the water supply to the water heater at the water
shutoff valve or water meter.
22
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Service and Maintenance (cont’d)
6. Lift out the tab as shown to unclip the terminal cover from
the thermostat. The terminal cover can now be removed
from the thermostat.
Lift out tab to unclip
terminal cover from
thermostat.
11. Close the water heater drain valve by turning the handle
to the right (clockwise). The drain valve is on the lower
front of the water heater.
12. Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open
when the water heater is in use.
13. To insure complete filling of the tank, allow air to exit by
opening the nearest hot water faucet. Allow water to run
until a constant flow is obtained. This will let air out of
the water heater and the piping.
LOWER THERMOSTAT
WITHOUT HIGH LIMIT
UPPER OR LOWER
THERMOSTAT WITH
HIGH LIMIT
7. Disconnect the two wires on the element and unscrew the
old element from the tank.
CAUTION
Never use this water heater unless it is completely
full of water. To prevent damage to the tank and
heating element, the tank must be filled with water.
Water must flow from the hot water faucet before
turning “ON” power.
14. Check element for water leaks. If leakage occurs, tighten
element or repeat steps 2 and 3, remove element and
reposition gasket. Then repeat steps 10 through 14.
15. Reconnect the two wires to the element and then check
to make sure the thermostat remains firmly against the
surface of the tank.
8. Clean the area around the element opening. Remove any
sediment from or around the element opening and inside
the tank.
9. If you are cleaning the element you have removed, do so
by scraping or soaking in vinegar or a de-liming solution.
WARNING
Replacement elements must (1) be the same volt-
age and (2) no greater wattage than listed on the
model rating plate affixed to the water heater.
10. A new gasket should be used in all cases to prevent a pos-
sible water leak. (See Element Gasket in the Repair Parts
Chart). Place the new element gasket on the thread side
of the cleaned or new element and screw into tank, secur-
ing tightly using an element wrench.
23
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Service and Maintenance (cont’d)
Element Cleaning/
Replacement (cont’d)
Drain Valve Washer
Replacement
NOTE: For replacement, use a 17⁄32″ x 13⁄64″ x 1⁄8″ thick washer
available at your nearest hardware store. For ordering a
replacement washer, refer to the “Repair Parts” section.
16. Replace the terminal cover on the thermostat making
sure that the locking tabs on the terminal cover are in
place.
1. Before beginning turn “OFF” the electrical power supply
to the water heater.
Lift out tab to clip
terminal cover to
thermostat.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE.
2. Follow “Draining” instructions in the “Service and
Maintenance” section.
3. Turning counter clockwise, remove the hex cap below the
screw handle.
LOWER THERMOSTAT
WITHOUT HIGH LIMIT
UPPER OR LOWER
THERMOSTAT WITH
HIGH LIMIT
4. Remove the washer and put the new one in place.
5. Screw the handle and cap assembly back into the drain
valve and retighten using a wrench. DO NOT OVER
TIGHTEN.
17. Place the insulation block and pad back in place so that it
completely covers the thermostat and element.
6. Follow “Filling the Water Heater” instructions in the
“Instructions for Installation” section.
7. Check for leaks.
8. Turn “ON” electric power to the water heater.
HANDLE AND
CAP ASSEMBLY
WASHER
18. Replace access panel.
19. Turn “ON” electric power to water heater.
Service
Before calling for repair service, read the “Start Up
Conditions” and “Operational Conditions” found in the
“Troubleshooting” section of this manual.
If a condition persists or you are uncertain about the opera-
tion of the water heater, let a qualified person check it out.
Call Maytag Customer Service at 1-800-788-8899.
24
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Troubleshooting
Start Up Conditions
Smelly water may be eliminated or reduced in some water heater
models by replacing the anode(s) with one of less active material,
and then chlorinating the water heater tank and all hot water
lines. Call Maytag Customer Service at 1-800-788-8899 for an
authorized servicer for further information concerning an Anode
Replacement Kit #66001068 and this Chlorination Treatment.
THERMAL EXPANSION
Water supply systems may, because of such events as high line
pressure, frequent cut-offs, the effects of water hammer
among others, have installed devices such as pressure reducing
valves, check valves, back flow preventers, etc...to control
these types of problems. When these devices are not equipped
with an internal by-pass, and no other measures are taken, the
devices cause the water system to be closed. As water is heat-
ed, it expands (thermal expansion) and closed systems do not
allow for the expansion of heated water.
If the smelly water persists after the anode replacement and chlo-
rination treatment, we can only suggest that continuous chlorina-
tion and filtering conditioning equipment be considered to elimi-
nate the water problem.
The water within the water heater tank expands as it is heated
and increases the pressure of the water system. If the relieving
point of the water heater's temperature-pressure relief valve is
reached, the valve will relieve the excess pressure. The temper-
ature-pressure relief valve is not intended for the constant
relief of thermal expansion. This is an unacceptable condition
and must be corrected.
Do not remove the anode leaving the tank unprotected. By
doing so, all warranty on the water heater tank is voided.
“AIR” IN HOT WATER FAUCETS
WARNING
HYDROGEN GAS: Hydrogen gas can be produced in
a hot water system that has not been used for a
long period of time (generally two weeks or more).
Hydrogen gas is extremely flammable and explo-
sive. To prevent the possibility of injury under these
conditions, we recommend the hot water faucet be
opened for several minutes at the kitchen sink
before any electrical appliances which are connect-
ed to the hot water system are used (such as a dish-
washer or washing machine). If hydrogen gas is pre-
sent, there will probably be an unusual sound simi-
lar to air escaping through the pipe as the hot
water faucet is opened. There must be no smoking
or open flame near the faucet at the time it is open.
It is recommended that any devices installed which could create
a closed system, have a by-pass and/or the system have an
expansion tank to relieve the pressure built by thermal expan-
sion in the water system. Expansion tanks are available for
ordering through the Maytag Customer Service. Contact the
local water supplier and/or call Maytag Customer Service at
1-800-788-8899 for an authorized servicer for assistance in
controlling these situations.
STRANGE SOUNDS
Possible noises due to expansion and contraction of some
metal parts during periods of heat-up and cool-down do not
represent harmful or dangerous conditions.
RUMBLING NOISE
In some water areas, scale or mineral deposits will build up on
your heating elements. This buildup will cause a rumbling
noise. Follow “Element Cleaning/Replacement” instructions
to clean and replace the elements.
Operational Conditions
SMELLY WATER
HIGH TEMPERATURE SHUT OFF SYSTEM
In each glasslined water heater there is installed at least one anode
rod (see parts section) for corrosion protection of the tank.
Certain water conditions will cause a reaction between this rod
and the water. The most common complaint associated with the
anode rod is one of a “rotten egg smell”. This odor is derived from
hydrogen sulfide gas dissolved in the water. The smell is the result
of four factors which must all be present for the odor to develop:
The water heater has a high limit shut off system with a reset
button located on the thermostat.
Follow the resetting instructions which refer to the high limit
behind the access panel.
NOTE: If your water heater is connected to an “OFF
PEAK” clock, and uses the “3 wire lead” wiring diagram in
the “Wiring Diagram” section, then the water heater will
have a hi-limit on both the upper and lower thermostats.
Follow the instructions to reset the hi-limit behind the
upper and lower access panels.
a. a concentration of sulfate in the supply water.
b. little or no dissolved oxygen in the water.
c. a sulfate reducing bacteria within the water heater. (This
harmless bacteria is non-toxic to humans.)
d. an excess of active hydrogen in the tank. This is caused by
the corrosion protective action of the anode.
25
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Troubleshooting (cont’d)
NOT ENOUGH OR NO HOT WATER
1. Before beginning, turn “OFF” electrical power supply to
the water heater.
1. In a new installation, the water heater may not be proper-
ly connected. Make sure the cold water supply valve is
open. Review and check piping installation. Make sure
that the cold water line is connected to the cold water
inlet to the water heater and the hot water line to the hot
water outlet on the water heater.
2. Make sure the electrical supply to your water heater is
“ON”.
3. Check for loose or blown fuses in your water heater cir-
cuit. Circuit breakers weaken with age and may not han-
dle their rated load and should be replaced.
WARNING
HAZARD OF ELECTRICAL SHOCK! Before removing
any access panels or servicing the water heater,
make sure the electrical supply to the water heater
is turned “OFF”. Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE.
4. Make certain the disconnect switch, if used, is in the
“ON” position.
5. Check to see the electric service to your house has not
been interrupted. If this is the case, contact the electric
company.
2. Remove the two screws securing the access panel and
remove panel.
3. Remove the insulation block and pad to expose the termi-
nal cover.
6. Are the thermostats set to the desired temperature? See
“Temperature Regulation” section.
4. Reset the high limit by pushing in the red button marked
“RESET”.
7. If you had experienced very hot water and now no hot
water, the problem may be due to the high temperature
shut off system. See “High Temperature Shut Off
System” in the “Troubleshooting” section.
RESET BUTTON
8. During very cold weather, the incoming water will also be
colder and it will require a longer time to become heated.
9. The hot water usage may exceed the capacity of the water
heater. If so, wait for water heater to recover after abnor-
mal demand. Also examine pipes and faucets for possible
water leaks.
5. Replace the insulation block and pad so that it completely
covers the thermostat and element.
10. If you can not determine the problem, then call the
Maytag Service Department.
6. Replace the access panel.
WATER IS TOO HOT
7. Turn “ON” electric power to the water heater.
Adjust the thermostat to a lower setting. See the
“Temperature Regulation” section.
CAUTION
If the high limit must be reset again, call Maytag
Customer Service at 1-800-788-8899 for an autho-
rized servicer to find out why the high limit turned
“OFF” the electric power.
26
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Troubleshooting (cont’d)
Leakage Checkpoints
Use this guide to check a “Leaking” water heater. Many sus-
pected “Leakers” are not leaking tanks. Often the source of
the water can be found and corrected.
CAUTION
Read this manual first, then before checking the
water heater make sure the electric supply has been
turned “OFF”, and never turn the electric supply
“ON” before the tank is completely full of water.
If you are not thoroughly familiar with electric codes, the
water heater, and safety practices, contact your local utility or
call Maytag Customer Service at 1-800-788-8899 for an
authorized servicer to check the water heater.
A
*Condensation may be seen on pipes in humid weather
or pipe connections may be leaking.
A
B
*The primary anode rod may be leaking.
B
A
Small amounts of water from temperature-pressure
relief valve may be due to thermal expansion or high
water pressure in your area.
C
D
C
*The temperature-pressure relief valve may be leaking
at the tank fitting.
D
E
The elements may be leaking at the tank fitting.
E
WARNING
HAZARD OF ELECTRICAL SHOCK! Before
removing any access panels or servicing the
water heater, make sure the electrical supply
to the water heater is turned “OFF”. Failure to
do this could result in DEATH, SERIOUS BODI-
LY INJURY, OR PROPERTY DAMAGE.
Turn electrical power “OFF”, remove access panels,
insulation blocks and pads. If leaking around ele-
ments, follow proper draining instructions and
remove element. Reposition or replace gasket on ele-
ment. Place element into opening and tighten
securely. Then follow “Filling the Water Heater”
instructions in the “Installation Instructions” section.
Water from drain valve may be due to the valve being
opened slightly.
F
E
G
H
*The drain valve may be leaking at the tank fitting.
*Water in the water heater bottom or on the floor may
be from condensation, loose connections or the
temperature-pressure relief valve. DO NOT replace
the water heater until a full inspection of all possible
water sources is made and necessary corrective steps
taken.
G
H
F
Leakage from other appliances, water lines, or ground
seepage should also be checked.
*NOTE: To check where threaded portion enters
tank, insert cotton swab between jacket opening
and fitting. If cotton is wet, follow “Draining”
instructions in the “Service and Maintenance” sec-
tion and then remove fitting. Put pipe dope or
teflon tape on the threads and replace. Then follow
“Filling the Water Heater” instructions in the
“Instructions for Installation” section.
27
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Repair Parts List
MAYTAG ELECTRIC WATER HEATERS
MODEL NUMBERS
HRE2930T
HRE3930T
HRE2940S
HRE3940S
HRE2940T
HRE3940T
30 GALLON
30 GALLON
40 GALLON
40 GALLON
40 GALLON
40 GALLON
NOTE:
UPPER ELEMENT: These water heaters are equipped
with 3800 watt elements.
LOWER ELEMENT: These water heaters are equipped
with factory installed convertible elements, which can be
operated at 3800 watts or 5500 watts. Convertible elements
are not offered as replacement parts.
If a replacement 3800 watt, 240 volt element is needed,
order part no. 66001106 replacement element. If, at the time
of installation, the water heater was converted to operate at
5500 watts, order part number 66001107 replacement ele-
ment. (See model rating plate “If Converted” box).
22
21
20
23
3
1
19
2
18
9
15
17
16
8
6
4
10
9
7
5
11
14
12
13
28
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Repair Parts List (cont’d)
MAYTAG ELECTRIC WATER HEATERS
MODEL NUMBERS
HRE2930T
HRE3930T
HRE2940S
HRE3940S
HRE2940T
HRE3940T
30 GALLON
30 GALLON
40 GALLON
40 GALLON
40 GALLON
40 GALLON
MODEL NUMBERS
HRE2930T HRE3930T HRE2940S HRE3940S HRE2940T HRE3940T
PART NUMBERS
KEY PART
NO. DESCRIPTION
1
Temperature-Pressure Relief Valve 66001700 66001700
66001700 66001700 66001700 66001700
66001709 66001709 66001709 66001709
66001728 66001728 66001701 66001701
66001015 66001015 66001015 66001015
66001021 66001021 66001021 66001021
2
3
4
5
T&P Insulation
Dip Tube
66001709 66001709
66001544 66001544
66001015 66001015
66001021 66001021
Drain Valve
Drain Valve Washer
17⁄32″x 13⁄64″x 1
⁄8″ thick)*
6
7
8
Element Gasket
Lower Element
Buss Bar Kit
66001053 66001053
66001053 66001053 66001053 66001053
SEE NOTE ON PAGE 28
66001055 66001055 66001055 66001055
66001054 66001054 66001054 66001054
66001055 66001055
66001054 66001054
9
Thermostat Bracket
10
2 Pole Thermostat
(Two Wire Lead Models)†
66001007
—
66001007
—
66001007
—
11
12
Terminal Cover (Lower)
Lower Thermostat w/Hi Limit
(Three Wire Lead Models)†
66001268
—
—
66001268
—
—
66001268
—
—
66001008
66001008
66001008
13
14
15
16
17
18
19
20
21
22
23
#
Terminal Cover (Lower Three Wire)
Lower Access Panel
Upper Access Panel
Terminal Cover (Upper)
Upper Thermostat w/Hi Limit
Upper Element
Element Gasket
Primary Anode
Secondary Anode/Nipple w/Heat Traps 66001716 66001716
—
66001272
—
66001272
—
66001272
66001703 66001703
66001703 66001703
66001064 66001064
66001009 66001009
66001703 66001703 66001703 66001703
66001703 66001703 66001703 66001703
66001064 66001064 66001064 66001064
66001009 66001009 66001009 66001009
SEE NOTE ON PAGE 28
66001053 66001053 66001053 66001053
66001725 66001725 66001111 66001111
66001720 66001720 66001717 66001717
66001705 66001705 66001705 66001705
66001708 66001708 66001708 66001708
66001711
66001053 66001053
66001252 66001252
Nipple w/Heat Traps
Pipe Insulation
Manual
66001704 66001704
66001708 66001708
*Also available at most hardware stores.
†Refer to Wiring Diagram Section for verification.
#Not Illustrated
Now that you have purchased this water heater, should a
need ever exist for repair parts or service, simply call Maytag
Customer Service at 1-800-788-8899 for an authorized ser-
vicer. Be sure to provide all pertinent facts when you call or
visit.
The model number of the water heater will be found on the
model rating plate located above the access panel.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
Model Number
Serial Number
Part Description
Part Number
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.
29
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Repair Parts List (cont’d)
MAYTAG ELECTRIC WATER HEATERS
MODEL NUMBERS
HRE2940L
HRE3940L
40 GALLON
40 GALLON
NOTE:
UPPER ELEMENT: These water heaters are equipped
with 3800 watt elements.
LOWER ELEMENT: These water heaters are equipped
with factory installed convertible elements, which can be
operated at 3800 watts or 5500 watts. Convertible elements
are not offered as replacement parts.
If a replacement 3800 watt, 240 volt element is needed,
order part no. 66001106 replacement element. If, at the time
of installation, the water heater was converted to operate at
5500 watts, order part number 66001107 replacement ele-
ment. (See model rating plate “If Converted” box).
22
21
20
23
3
1
19
2
18
15
9
17
16
8
6
10
7
5
9
4
11
14
12
13
30
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Repair Parts List (cont’d)
MAYTAG ELECTRIC WATER HEATERS
MODEL NUMBERS
HRE2940L
HRE3940L
40 GALLON
40 GALLON
MODEL NUMBERS
HRE2940L HRE3940L
PART NUMBERS
KEY PART
NO. DESCRIPTION
1
2
3
4
5
Temperature-Pressure Relief Valve 66001682 66001682
T&P Insulation
Dip Tube
66001709 66001709
66001722 66001722
66001015 66001015
66001021 66001021
Drain Valve
Drain Valve Washer
17⁄32″x 13⁄64″x 1
⁄8″ thick)*
6
7
8
9
10
Element Gasket
Lower Element
Buss Bar Kit
Thermostat Bracket
2 Pole Thermostat
(Two Wire Lead Models)†
Terminal Cover (Lower)
Lower Thermostat w/Hi Limit
(Three Wire Lead Models)†
66001053 66001053
SEE NOTE ON PAGE 30
66001055 66001055
66001054 66001054
66001007
—
11
12
66001268
—
—
66001008
13
14
15
16
17
18
19
20
21
22
23
#
Terminal Cover (Lower Three Wire)
Lower Access Panel
Upper Access Panel
Terminal Cover (Upper)
Upper Thermostat w/Hi Limit
Upper Element
Element Gasket
Primary Anode
Secondary Anode/Nipple w/Heat Traps 66001720 66001720
—
66001272
66001703 66001703
66001703 66001703
66001064 66001064
66001009 66001009
SEE NOTE ON PAGE 30
66001053 66001053
66001723 66001723
Nipple w/Heat Traps
Pipe Insulation
Manual
66001705 66001705
66001708 66001708
66001711
*Also available at most hardware stores.
†Refer to Wiring Diagram Section for verification.
#Not Illustrated
The model number of the water heater will be found on the
model rating plate located above the access panel.
Now that you have purchased this water heater, should a
need ever exist for repair parts or service, simply call Maytag
Customer Service at 1-800-788-8899 for an authorized ser-
vicer. Be sure to provide all pertinent facts when you call or
visit.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
Model Number
Serial Number
Part Description
Part Number
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.
31
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Repair Parts List (cont’d)
MAYTAG ELECTRIC WATER HEATERS
MODEL NUMBERS
HRE2950S
HRE3950S
HRE2950T
HRE3950T
HRE2966T
HRE3966T
50 GALLON
50 GALLON
50 GALLON
50 GALLON
66 GALLON
66 GALLON
NOTE:
UPPER ELEMENT: These water heaters are equipped
with 3800 watt elements.
LOWER ELEMENT: These water heaters are equipped
with factory installed convertible elements, which can be
operated at 3800 watts or 5500 watts. Convertible elements
are not offered as replacement parts.
If a replacement 3800 watt, 240 volt element is needed,
order part no. 66001106 replacement element. If, at the time
of installation, the water heater was converted to operate at
5500 watts, order part number 66001107 replacement ele-
ment. (See model rating plate “If Converted” box).
22
21
20
23
3
1
19
2
18
15
9
17
16
8
6
10
9
7
5
4
11
14
12
13
32
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Repair Parts List (cont’d)
MAYTAG ELECTRIC WATER HEATERS
MODEL NUMBERS
HRE2950S
HRE3950S
HRE2950T
HRE3950T
HRE2966T
HRE3966T
50 GALLON
50 GALLON
50 GALLON
50 GALLON
66 GALLON
66 GALLON
MODEL NUMBERS
HRE2950S HRE3950S HRE2950T HRE3950T HRE2966T HRE3966T
PART NUMBERS
KEY PART
NO. DESCRIPTION
1
Temperature-Pressure Relief Valve 66001700 66001700
66001700 66001700 66001700 66001700
2
3
4
5
T&P Insulation
Dip Tube
Drain Valve
66001709 66001709
66001544 66001544
66001015 66001015
66001021 66001021
—
—
—
—
66001702 66001702 66001702 66001702
66001015 66001015 66001015 66001015
66001021 66001021 66001021 66001021
Drain Valve Washer
17⁄32″x 13⁄64″x 1
⁄8″ thick)*
6
7
8
Element Gasket
Lower Element
Buss Bar Kit
66001053 66001053
66001053 66001053 66001053 66001053
SEE NOTE ON PAGE 32
66001055 66001055 66001055 66001055
66001054 66001054 66001054 66001054
66001055 66001055
66001054 66001054
9
Thermostat Bracket
10
2 Pole Thermostat
(Two Wire Lead Models)†
66001007
—
66001007
—
66001007
—
11
12
Terminal Cover (Lower)
Lower Thermostat w/Hi Limit
(Three Wire Lead Models)†
66001268
—
—
66001268
—
—
66001268
—
—
66001008
66001008
66001008
13
14
15
16
17
18
19
20
21
22
23
#
Terminal Cover (Lower Three Wire)
Lower Access Panel
Upper Access Panel
Terminal Cover (Upper)
Upper Thermostat w/Hi Limit
Upper Element
Element Gasket
Primary Anode
Secondary Anode/Nipple w/Heat Traps 66001217 66001217
—
66001272
—
66001272
—
66001272
66001703 66001703
66001703 66001703
66001064 66001064
66001009 66001009
66001703 66001703 66001703 66001703
66001703 66001703 66001703 66001703
66001064 66001064 66001064 66001064
66001009 66001009 66001009 66001009
SEE NOTE ON PAGE 32
66001053 66001053 66001053 66001053
66001727 66001727 66001733 66001733
66001720 66001720 66001217 66001217
66001705 66001705 66001707 66001707
66001709 66001709 66001709 66001709
66001711
66001053 66001053
66001726 66001726
Nipple w/Heat Traps
Pipe Insulation
Manual
66001707 66001707
66001709 66001709
*Also available at most hardware stores.
†Refer to Wiring Diagram Section for verification.
#Not Illustrated
The model number of the water heater will be found on the
model rating plate located above the access panel.
Now that you have purchased this water heater, should a
need ever exist for repair parts or service, simply call Maytag
Customer Service at 1-800-788-8899 for an authorized ser-
vicer. Be sure to provide all pertinent facts when you call or
visit.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE
THE FOLLOWING INFORMATION:
Model Number
Serial Number
Part Description
Part Number
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.
33
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Repair Parts List (cont’d)
MAYTAG ELECTRIC WATER HEATERS
MAYTAG/STATE
PART NUMBER CONVERSION KEY
MAYTAG
66001007
66001008
66001009
66001011
66001012
66001013
66001014
66001015
66001021
66001053
66001054
66001055
66001064
66001068
66001105
66001106
66001107
66001111
66001252
66001268
66001272
66001544
66001682
66001700
66001701
66001702
66001703
66001704
66001705
66001707
66001708
66001709
66001711
66001716
66001717
66001720
66001722
66001723
66001725
66001726
66001727
66001728
66001733
STATE
9002437
9002436
9002435
9001609
9001608
ETC2X
ETC5X
9002401
9001584
9000308
9000309
9001591
9002438
9001453
9002769
9000225
9000396
9001672
9001834
9002276
9002303
9003501
9003741
9003917
9003929
9003919
9003900
9003915
9003719
9003909
9003717
9003716
184741-000
9003963
9003964
9003967
9003926
9003922
9003487
9003927
9003928
9003979
9003729
34
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Notes
35
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Warranty
FULL ONE YEAR WARRANTY
For One Year from the date of Original Retail Purchase, any part which fails in normal home use will be repaired or
replaced free of charge.
If a leak occurs in the Tank, a new water heater of the closest capacity and quality then available, will be replaced free
of charge.
The warranty of the replacement is the balance of the original water heater’s Warranty.
LIMITED PARTS WARRANTY
After the First year and through the Ninth Year from the date of Original Retail Purchase, any Parts which fail due
to a defect in materials or workmanship, will be replaced or repaired free of charge for the part itself, with the owner
paying all other costs, including labor, mileage and transportation.
If the water heater is subjected to commercial, institutional, industrial or non-residential use, the above warranty cov-
erage for parts that are proved to be defective in material or workmanship is effective for one year from the date of
the Original Retail Purchase.
The warranty of the replacement is the balance of the original water heater’s Warranty, or twelve months from the
date of the part(s) purchase, whichever comes first.
The warranty is limited to the original owner of the water heater.
LIMITED TANK WARRANTY AGAINST LEAKS
After the First Year and through the Ninth Year from the date of Original Retail Purchase, if a leak occurs in the
Tank, a new water heater of the closest capacity and quality then available, will be replaced free of charge for the
water heater, with the owner paying all other costs, including labor, mileage and transportation.
If the water heater is subjected to commercial, institutional, industrial or non-residential use, the above warranty cov-
erage for tanks that are proven to be defective in material or workmanship is effective for two years from the date of
the Original Retail Purchase.
The warranty of the replacement is the balance of the original water heater’s Warranty.
Please note: The Full and Limited Warranty applies only while this water heater is used in the United States of America.
The warranty is limited to the original owner of the water heater.
TO RECEIVE WARRANTY SERVICE
To locate an authorized service company in your area contact the Maytag dealer from whom your appliance was pur-
chased; or call Maytag Customer Service at the number listed below. Should you not receive satisfactory warranty
service, please call or write:
Maytag Customer Service
P. O. Box 2370
Cleveland, TN 37320-2370
U.S.A. 1-800-788-8899
When contacting Maytag Customer Service be sure to provide the Model and Serial Number of your appliance, The
Name and Address of the Dealer from whom you purchased the appliance and the Date of Purchase.
MAYTAG WATER HEATERS ARE MANUFACTURED AND THIS WARRANTY PROVIDED BY
STATE INDUSTRIES, INC., ASHLAND CITY, TN. MAYTAG IS A TRADEMARK OF MAYTAG COR-
PORATION AND IS USED UNDER LICENSE TO STATE INDUSTRIES, INC.
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