March 2021
Residen al Electric
Water Heater
Installa on Instruc ons and
Use & Care Guide
Keep this manual in the pocket on heater for future reference whenever maintenance, adjustment or service is required.
Retain your original receipt as proof of purchase.
LOW LEAD
C
O
NTENT
DO NOT RETURN THIS UNIT TO THE STORE
Read this manual and the labels on the water heater before you install,
operate, or service it. If you have diffi culty following the direc ons, or
aren’t sure you can safely and properly do any of this work yourself:
• Call our Technical Assistance Hotline at 1-877-817-6750 or visit h p:// www.
AOSmithAtLowes.com . We can help you with installa on, opera ons, trouble-
shoo ng, or maintenance. Before you call, write down the model and serial
number from the water heater’s data plate.
Incorrect installa on, opera on, or service can damage the water heater, your house
and other property, and present risks including fi re, scalding, electric shock, and
explosion, causing serious injury or death.
AHRI Cer fi ca on® applies to residen al electric water heaters with rated capaci es
of 20 to 120 gallon and input ra ngs of 12 kw or less.
Table of Contents Page
IMPORTANT SAFETY INFORMATION ................................. 3
GETTING STARTED ............................................................6
INSTALLATION ................................................................... 7
TROUBLESHOOTING .......................................................17
MAINTENANCE ............................................................... 20
DIAGRAMS .....................................................................24
REPAIR PARTS ..........................................................25
100341465_ 2000598641
COMPLETED INSTALLATION TYPICAL
Upper
Element and
Thermostat
access
Lower
Element and
Thermostat
access
T&P
relief
valve
Water
shut off
Electrical
junc on
box
Expansion
tank
T&P
discharge
pipe
Drain pan
discharge
pipe
Drain pan
Drain valve
Cold
water
line
Hot
water
line
ECO Reset
Bu on
(on most
models)
SAFETY
Residen al Electric Water Heater Use and Care Guide • 3
IMPORTANT SAFETY INFORMATION
Important informa on to keep
Fill out this sec on and keep this
manual in the pocket of the water
heater for reference.
Date Purchased:
Model number:
Serial number:
Maintenance performed:* Date:
This is the safety alert symbol. It is used to alert you to
poten al physical injury hazards. Obey all safety mes-
sages that follow this symbol to avoid possible property
damage, serious injury or death. Do not remove any
permanent instruc ons, labels, or the data plate from either the outside of
the water heater or on the inside of the access panels. Keep this manual
near the water heater.
DANGER
Read and follow all safety messages and instruc ons in
this manual.
DANGER indicates hazardous
situa on that, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a hazardous
situa on that, if not avoided, could
result in death or serious injury.
CAUTION
CAUTION indicates a hazardous
situa on that, if not avoided, could
result in minor or moderate injury.
NOTICE
NOTICE indicates prac ces not
related to physical injury.
*Drain and fl ush tank and remove and
inspect anode rod a er fi rst six months
of opera on and at least annually
therea er. Operate the Temperature
and Pressure Relief Valve (T&P) annually
and inspect T&P valve every 2-4 years
(see the label on the T&P valve for
maintenance schedule). If no label is
a ached to the T&P Relief Valve, follow
the instruc ons in the T&P Relief Valve
Maintenance sec on of this manual.
See the Maintenance sec on for more
informa on about maintaining this
water heater.
This product is certified to comply with a maximum weighted average of 0.25%
lead content as required in some areas.
4 • Residen al Electric Water Heater Use and Care Guide
IMPORTANT SAFETY INFORMATION
T
o reduce the risk of property
damage, serious injury or death,
read and follow the precau ons below,
all labels on the water heater, and
the safety messages and instruc ons
throughout this manual.
RISKS DURING INSTALLATION
AND MAINTENANCE
Electric Shock Risk
Contact with the electrical
parts in the junction box and
behind the access doors can
result in severe injury or death from
electrical shock:
• Disconnect power by opening the
circuit breaker or removing the
fuses before installing or servicing.
• Use a non-contact circuit tester to
confirm that power is off before
working on or near any electrical
parts.
• Replace the junction box cover and
access doors after servicing.
Lifting Risk
WARNING! The
water heater is
heavy. Follow these
precau ons to
reduce the risk of property damage,
injuries from li ing or impact injuries
from dropping the water heater.
• Use at least two people to lift the
water heater.
• Be sure you both have a good grip
before lifting.
• U se an appliance dolly or hand
truck to move the water heater.
RISKS DURING OPERATION
Scalding Risk
This water heater
can make water hot
enough to cause
severe burns instantly, resulting in
severe injury or death.
• Feel water before bathing or s how-
ering.
• To reduce the risk of scalding,
install Thermostatic Mixing Valves
(temperature limiting valves) at
each point-of-use. These valves
automatically mix hot and cold
water to limit the temperature at
the tap. Mixing valves are available
from Lowe’s®. Follow manufactur-
er’s instructions for installation and
adjustment of the valves.
• The thermostat(s) on this water
heater have been factory set to
approximately 120°F to reduce the
risk of scalding. Higher tempera-
tures increase the risk of scalding,
but even at 120°F, hot water can
scald. If you choose a higher tem-
perature, Thermostatic Mixing
Valves located at each point-of-use
are particularly important to help
avoid scalding.
Temperature Time to Produce a
Serious Burn
120°F (49°C) More than 5 minutes
125°F (52°C) 1½ to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 1½ seconds
155°F (68°C) About 1 second
For informa on about changing the
factory thermostat se ng(s), refer to
the “Adjus ng Temperature” sec on in
this manual (“Step 10” on page 15).
Even if you set the water heater
thermostat(s) to a low se ng, higher
temperatures may occur in certain
circumstances:
• In some cases, repeated small
draws of water can cause the
hot and cold water in the tank to
“stack” in layers. If this happens,
the water can be as much as thirty
degrees hotter than the thermo-
stat setting. This temperature varia-
tion is the result of your usage pat-
tern and is not a malfunction.
• Water temperature will be hot-
ter if someone adjusted the
thermostat(s) to a higher setting.
• Problems with the thermostat(s),
or other malfunctions may result in
higher than expected water tem-
peratures.
• If the water heater is in a hot envi-
ronment, the water in the tank can
become as hot as the surrounding
air, regardless of the thermostat
setting.
• If the water supplied to the water
heater is pre-heated (for example,
by a solar system) the temperature
in the tank may be higher than the
water heater’s thermostat setting.
To reduce the risk of unusually hot
water reaching the fi xtures in the
house, install Thermosta c Mixing
Valves at each point-of-use.
If anyone in your home is at par cular
risk of scalding (for example, the el-
derly, children, or people with disabili-
es) or if there is a local code or state
law requiring a certain water tempera-
ture at the hot water tap, then these
SAFETY
Residen al Electric Water Heater Use and Care Guide • 5
precau ons are par cularly important.
According to a na onal standard
American Society of Sanitary Engineer-
ing (ASSE 1070) and most local plumbing
codes, the water heater’s thermostat
should not be used as the sole means to
regulate water temperature and avoid
scalds.
Properly adjusted Thermosta c Mixing
Valves installed at each point-of-use al-
low you to set the tank temperature to
a higher se ng without increasing risk
of scalds. A higher temperature se ng
allows the tank to provide much more
hot water and can help provide proper
water temperatures for appliances such
as dishwashers and washing machines.
Higher tank temperatures (140°F)
also kill bacteria that cause a condi-
on known as “smelly water” and can
reduce the levels of bacteria that cause
water-borne diseases.
Water Contamination Risk
Do not use chemicals that could con-
taminate the potable water supply. Do
not use piping that has been treated
with chromates, boiler seal, or other
chemicals.
Fire Risk
To reduce the risk of a
fire that could destroy
your home and serious-
ly injure or kill people:
• D o not store things that can burn
easily such as paper or clothes next
to the water heater.
• Be sure the junction box cover and
the access door covers are in place.
These covers keep debris from
entering and potentially being ignit-
ed, and help keep any internal fires
from spreading.
• Keep the water heater from becom-
ing wet. Immediately shut the water
heater off and have it inspected by a
qualified person if you find that the
wiring, thermostat(s) or surround-
ing insulation have been exposed to
water in any way (e.g., leaks from
plumbing, leaks from the water
heater itself can damage property
and could cause a fire risk). If the
water heater is subjected to flood
conditions or the thermostat(s) have
been submerged in water, the entire
water heater must be replaced.
• Make electrical connections prop-
erly, according to the instructions
on page 14. Use 10 gauge solid
copper wire. Use a UL listed or CSA
approved strain relief. Connect
ground wire to green ground screw.
Explosion Risk
High temperatures and
pressures in the water
heater tank can cause an
explosion resulting in property
damage, serious injury or death. A
new Temperature and Pressure (T&P)
Relief Valve is included with your water
heater to reduce risk of explosion by
discharging hot water. Additional
temperature and pressure protective
equipment may be required by local
codes.
A nationally recognized testing labora-
tory maintains periodic inspection of
the valve production process and certi-
fies that it meets the requirements
for Relief Valves for Hot Water Supply
Systems, ANSI Z21.22. The T&P Relief
Valve’s relief pressure must not exceed
the working pressure rating of the wa-
ter heater as stated on the rating plate.
Maintain the T&P Relief Valve prop-
erly. Follow the maintenance instruc-
tions provided by the manufacturer of
the T&P Relief Valve (label attached
to T&P Relief Valve). If no label is
attached to the T&P Relief Valve, fol-
low the instructions in the T&P Relief
Valve Maintenance section of this
manual.
An explosion could occur if the T&P
Relief Valve or discharge pipe is
blocked. Do not cap or plug the T&P
Relief Valve or discharge pipe.
Fire and Explosion Risk if Hot Water is
Not Used for Two Weeks or More
C AUTION! Hydrogen gas builds up in
a hot water system when it is not used
for a long period (two weeks or more).
Hydrogen gas is extremely fl ammable.
If the hot water system has not been
used for two weeks or more, open a
hot water faucet for several minutes at
the kitchen sink before using any elec-
trical appliances connected to the hot
water system. Do not smoke or have
an open fl ame or other igni on source
near the faucet while it is open.
SAFETY
6 • Residen al Electric Water Heater Use and Care Guide
GETTING STARTED
GETTING STARTED
Figure 1 - Flexible connectors use compres-
sion fittings and do not require soldering.
Figure 2 - Use a non-contact circuit tester
to insure that the power is off before you
work on a circuit.
Figure 3 - Install a Pressure Reducing Valve
set to 50 to 60 PSI.
1
Review all of the instruc ons
before you begin work.
If you aren’t sure that you
can safely and properly do this work
yourself, call your Lowe’s® store to
arrange for Professional Installa on
(you may also call a qualifi ed person
of your choice, such as a licensed
plumber or electrician, to have the
work done). Improper installa on can
damage the water heater, your home
and other property, and can present
risks of serious injury or death.
2
Check with your local and
state authori es for any local
or state codes that apply to
your area. In the absence of local and
state codes, follow Na onal Fire
Protec on Associa on (NFPA-70) and
the current edi ons of the Na onal
Electric Code (NEC) and the Interna-
onal Plumbing Code (IPC). The
instruc ons in this manual comply with
na onal codes, but the installer is
responsible for complying with local
codes.
Massachuse s code requires this wa-
ter heater to be installed in accordance
with Massachuse s 248-CMR 2.00 and
248-CMR 5.00: State Plumbing Code.
Other local and state authori es may
have similar requirements or other
codes applicable to the installa on of
this water heater.
3
Before you start, be sure you
have, and know how to use, the
following tools and supplies:
• Plumbing tools and supplies appro-
priate for the type of water pipes in
your home
• Threaded connectors (Figure 1) for
the cold and hot water pipes
• For homes plumbed with plastic
pipe, use threaded connectors suit-
able for the specific type of plastic
pipe used: CPVC and PEX (cross-
linked polyethylene). Do not use
PVC pipe.
• For homes with copper pipes,
you may purchase connector
kits with compression fittings
that don’t require soldering
(Figure 1). Compression fittings
are easier to install than sol-
dering copper pipes.
• Thread sealant tape or pipe joint
compound approved for potable
water
• Tools to make the electrical connec-
tions (for example, screwdrivers,
wire strippers)
• Non-Contact circuit tester to check
for power (Figure 2)
• Water Pressure Gauge (Figure 4)
Recommended Accessories:
• Suitable drain pan (Figure 6 on page
8)
• Automatic leak detection and shut-
off device
• Pressure Reducing Valve (Figure 3
on page 6)
• Thermal Expansion Tank (Figure 5
on page 7)
• Point-of-use Thermostatic Mixing
Valves (Figure 7 on page 8)
Residen al Electric Water Heater Use and Care Guide • 7
INSTALLATION
Follow these steps for proper
installa on:
Step 1:
✓
Verify that your
home is equipped
and up-to-date for
proper opera on
Installing a new water heater is the
perfect me to examine your home’s
plumbing system and make sure the
system is up to current code standards.
There have likely been plumbing code
changes since the old water heater was
installed. We recommend installing the
following accessories and any other
needed changes to bring your home up
to the latest code requirements.
Use the checklist below and inspect
your home. Install any devices you need
to comply with codes and assure that
your new water heater performs at its
best. Check with your local plumbing
offi cial for more informa on.
✓
Water pressure
We recommend checking your
home’s water pressure with a pressure
gauge (Figure 4.) Most codes allow a
maximum incoming water pressure of
80 psi. We recommend a working pres-
sure no higher than 50-60 psi.
HOW: Purchase an inexpensive water
pressure gauge available at Lowe’s®.
Connect the Water Pressure Gauge
to an outside faucet and measure the
maximum water pressure experienced
throughout the day (highest water
pressures o en occur at night).
Figure 4 - Use a Water Pressure Gauge to
make sure your home’s water pressure is
not too high.
To limit your home’s water pressure:
Locate your home’s Pressure Reduc-
ing Valve (PRV) on the main incoming
(cold) water supply line and adjust the
water pressure control to between 50
and 60 psi. If your home does not have
a Pressure Reducing Valve, install a
PRV on the home’s main water supply
line and set it to between 50 and 60
psi. Pressure Reducing Valves are avail-
able at Lowe’s® .
BACKGROUND: Over the years, many
u li es have increased water sup-
ply pressures so they can serve more
homes. In some homes today, pres-
sures exceed 100 psi. High water
pressures can damage water heaters,
causing premature leaks. If you have
replaced toilet valves, had a water
heater leak, or had to repair applianc-
es connected to the plumbing system,
pay par cular a en on to your home’s
water pressure. When purchasing a
PRV, make sure the PRV has a built-in
bypass.
✓
Water pressure
increase caused by
thermal expansion
Verify that you have a properly sized
Thermal Expansion Tank (Figure 5). We
recommend installing an expansion
tank if your home does not have one.
Codes require a properly pressurized,
properly sized Thermal Expansion Tank
in almost all homes. (See photo on
inside front cover.)
Figure 5 - A Thermal Expansion Tank helps
protect the home’s plumbing system from
pressure spikes.
HOW: Connect the Thermal Expan-
sion Tank (available at Lowe’s® ) to the
cold water supply line near the water
heater. The expansion tank contains
a bladder and an air charge. To work
properly, the Thermal Expansion Tank
must be sized according to the water
heater’s tank capacity and pressurized
to match the home’s incoming water
pressure. Refer to the installa on
instruc ons provided with the Thermal
Expansion Tank for installa on details.
INSTALLATION
8 • Residen al Electric Water Heater Use and Care Guide
BACKGROUND: Water expands when
heated, and the increased volume
of water must have a place to go, or
thermal expansion will cause large
increases in water pressure (despite
the use of a Pressure Reducing Valve
on the home’s main water supply
line). The Safe Drinking Water Act of
1974 requires the use of backfl ow
preventers and check valves to restrict
water from your home reentering
the public water system. Backfl ow
preventers are o en installed in water
meters and may not be readily visible.
As a result, most all plumbing systems
today are now “closed,” and almost all
homes now need a Thermal Expan-
sion Tank.
A Thermal Expansion Tank is a prac -
cal and inexpensive way to help avoid
damage to the water heater, washing
machine, dishwasher, ice maker and
even toilet valves. If your toilet oc-
casionally runs for no apparent reason
(usually briefl y at night), that may be
due to thermal expansion increasing
the water pressure temporarily.
Water pipe and tank
leaks
Leaks from plumbing pipes or from
the water heater itself can damage
property and could cause a fi re risk.
• Install an automatic leak detection
and shutoff device (available at
Lowe’s® ). These devices can detect
water leaks and can shut off the
water heater’s water supply if a
leak occurs.
Figure 6 - A suitable drain pan piped to an
adequate drain can help protect flooring
from leaks and drips.
• Install a suitable drain pan (avail-
able at Lowe’s® ) under the water
heater (Figure 6) to catch condensa-
tion or leaks in the piping connec-
tions or tank. Most codes require,
and we recommend, installing the
water heater in a drain pan that is
piped to an adequate drain. The
drain pan must be at least two inch-
es wider than the diameter of the
water heater. Install the drain pan
so the water level would be limited
to a maximum depth of 1-3/4”.
✓
Water tempera-
ture regula on
Figure 7 - Thermostatic Mixing Valves
installed at each point -of-use can help
prevent scalds.
Install Thermosta c Mixing Valves
(Figure 7) to regulate the temperature
of the water supplied to each point-
of-use (for example, kitchen sink,
bathroom sink, bath, shower).
Consult the valve manufacturer’s
instruc ons or a qualifi ed person.
WARNING! Even if the water heater
thermostat is set to a rela vely low
temperature, hot water can scald.
Install Thermosta c Mixing Valves at
each point-of-use to reduce the risk of
scalding (page 4).
BACKGROUND: A Thermosta c Mix-
ing Valve, installed at each point-
of-use, mixes hot water from the
water heater with cold water to more
precisely regulate the temperature of
hot water supplied to fi xtures. If you
aren’t sure if your plumbing system
is equipped with properly installed
and adjusted Thermosta c Mixing
Valves at each point where hot water
is used, contact a qualifi ed person for
more informa on.
INSTALLATION
INSTALLATION
Residen al Electric Water Heater Use and Care Guide • 9
Step 2:
Verify that the loca on
is appropriate
Before installing your water heater,
ensure that:
1
The water heater will be:
• Installed indoors close to
the center of the plumbing
system.
• In a suitable drain pan piped to an
adequate floor drain or external
to the building (Figure 6 on page
8).
• In an area that will not freeze
• In an area that is suitable for install-
ing the water heater vertically
2
The loca on has adequate
space (clearances) for periodic
servicing.
3
The fl oor can support the
weight of a full water heater.
4
Your area is not prone to
earthquakes. If it is, use
special straps as required by
local building codes.
NOTICE: The state of California re-
quires bracing, anchoring, or strapping
the water heater to avoid its moving
during an earthquake. Contact local
u li es for code requirements in your
area, visit h p://www.dsa.dgs.ca.gov,
or call 1-916-445-8100 and request
instruc ons. Other loca ons may have
similar requirements. Check with your
local and state authori es.
5
The loca on is not prone to
physical damage by vehicles,
fl ooding, or other risks.
Vehicle
Stop
Drain
Drain
P
a
n
Figure 8 - In a garage, install a vehicle stop
to avoid water heater damage.
6
Avoid loca ons such as a cs,
upper fl oors, or where a leak
might damage the structure
or furnishings. Due to the normal
corrosive ac on of water, the tank will
eventually leak. To minimize property
damage from leaks, inspect and
maintain your water heater in accor-
dance with this manual’s instruc ons.
Install a suitable drain pan under the
water heater piped to an adequate
drain. Inspect the drain pan, pipes, and
surrounding area regularly and fi x any
leaks found. Drain pans are available at
Lowe’s® . Leaks are frequently in the
plumbing system itself and not the
water heater.
Step 3:
Removing the old water
hea
ter
1
Read each installa on step
and decide if you have the
necessary skills to install the
water heater. Only proceed if you can
safely perform the work. If you are not
comfortable, have a qualifi ed person
perform the installa on.
2
Locate the water heater’s
circuit breaker and turn it OFF
(or remove the circuit’s
fuses).
3
On the old water heater,
remove the electrical
junction box access panel.
Using a non-contact circuit tester,
check the wiring to make certain the
power is OFF.
WARNING! Working on an energized
circuit can result in severe injury or
death from electrical shock.
4
Disconnect the electrical
wires.
5
Open a hot water faucet and
let the hot water run un l it is
cool (This may take 10
minutes or longer).
Figure 9 - Let the hot water run until it is cool.
WARNING! Be sure the water runs
cool before draining the tank to reduce
the risk of scalding.
6
Connect a garden hose to the
drain valve and place the
other end of the hose in a
drain, outside, or a bucket. (Note that
sediment in the bo om of the tank
may clog the valve and prevent it
from draining. If you can’t get the
tank to drain, contact a qualifi ed
person.)
INSTALLATION
10 • Residen al Electric Water Heater Use and Care Guide
7
Turn the cold water supply
valve OFF.
8
Open the drain valve on the
water heater.
Figure 10 - Draining the old water heater.
9
Also open a hot water faucet
to help the water in the tank
drain faster.
10
When the tank is empty,
disconnect the Temperature &
Pressure (T&P) Relief Valve
discharge pipe. You may be able to
reuse the discharge pipe, but do not
reuse the old T&P Relief Valve. A new
T&P Relief Valve comes installed on
your water heater (or on some models,
is in the carton with the water heater).
Figure 11 - Removing the T&P Relief Valve
discharge
pipe.
11
Disconnect the water pipes.
Many water pipes are
connected by a threaded
union which can be disconnected with
wrenches. If you must cut the water
pipes, cut the pipes close to the water
heater’s inlet and outlet connec ons,
leaving the water pipes as long as
possible. If necessary, you can make
them shorter later when you install
the new water heater.
12
Remove the old water heater.
WARNING! Use two or more people
to remove or install water heater.
Failure to do so can result in back or
other injury.
Step 4:
Installing the new
w
ater heater
1
Completely read all instruc-
ons before beginning. If you
are not sure if you can
complete the installa on, DO NOT
RETURN THIS UNIT TO THE STORE.
Seek assistance from any of the
following sources:
• Lowe’s® Professional Installation
is available for this product and the
work is guaranteed. Call your Lowe’s®
store to have this water heater
installed. Schedule an appointment
with a qualified person to install your
water heater.
• Call our Technical Assistance Hot-
line at 1-877-817-6750
2
Install a suitable drain pan
that is piped to an adequate
drain.
3
Set the water heater in place
taking care not to damage
the drain pan.
NOTICE: Most codes require se ng
the water heater in a suitable drain
pan piped to an adequate drain. The
drain pan helps avoid property dam-
age which may occur from condensa-
on or leaks in the piping connec ons
or tank. The drain pan must be at
least two inches wider than the diam-
eter of the water heater. Install the
drain pan so the water level is limited
to a maximum depth of 1-3/4”.
4
Verify that the water heater
is properly set in place
properly. Check that:
• The T&P Relief Valve will not be in
contact with any electrical parts.
• There is adequate space to install
the T&P Relief Valve discharge
pipe and that it can be piped to a
separate drain (and not into the
drain pan, unless otherwise allowed
by state and local codes).
• There is adequate access and space
around the water heater for future
maintenance.
• The water heater is installed
vertically.
INSTALLATION
INSTALLATION
DO NOT CONNECT ELECTRICAL
WIRING UNTIL YOU ARE
INSTRUCTED TO DO SO.
NOTICE: Connec ng electrical power
to the tank before it is completely
full of water (water must run FULL
STREAM from a hot water tap for a full
three minutes) will cause the upper
hea ng element to burn out.
Step 5:
Connect the Tempera-
tur
e and Pressure (T&P)
Relief Valve/Pipe
Most T&P Relief Valves are pre-installed
at the factory. In some cases, they are
shipped in the carton and must be
installed in the opening marked and
provided for this purpose and according
to local codes.
WARNING! To avoid serious injury
or death from explosion, install a T&P
Relief Valve according to the following
instruc ons:
1
If your water heater does not
have a factory installed T&P
Relief Valve, install the new
T&P Relief Valve that came with your
water heater. Do not reuse an old T&P
Relief Valve. Install a T&P Relief Valve
discharge pipe according to local codes
and the following guidelines:
• The discharge pipe should be at least
3/4” inside diameter and sloped for
proper drainage. Install it to allow
complete drainage of both the T&P
Relief Valve and the discharge pipe.
• The discharge pipe must withstand
250°F (121°C) without distor on. Use
only copper or CPVC pipe. Do not
use any other type of pipe, such as
PVC, iron, fl exible plas c pipe, or any
type of hose.
Figure 12 - The T&P Relief Valve discharge
pipe must be installed properly and piped to
an adequate drain.
• Terminate the discharge pipe a maxi-
mum of six inches above a fl oor drain
or outside the building. Do not drain
the discharge pipe into the drain
pan; instead pipe it separately to
an adequate drain. In cold climates,
terminate the discharge pipe inside
the building to an adequate drain.
Outside drains could freeze and
obstruct the drain line. Protect the
drain from freezing.
DISCHARGE
PIPE
DRAIN
PIPE
Figure 13 - The end of the T&P Relief Valve
discharge pipe must stop no more than
six inches above a floor drain or terminate
outside the building.
• Do not place any valve or other re-
stric on between the tank and T&P
Relief Valve. Do not cap, block, plug,
or insert any valve between the T&P
Relief Valve and the end of the dis-
charge pipe. Do not insert or install
any reducer in the discharge pipe.
Residen al Electric Water Heater Use and Care Guide • 11
INSTALLATION
Step 6:
Install shutoff
and
tempering valves
1
If one is not already installed,
install a manual shutoff valve
in the cold water line that
supplies the water heater. Install the
shutoff valve near the water heater so
that it is readily accessible. Only use
valves that are compa ble with
potable water. Use only full-fl ow ball
or gate valves. Other types of valves
may cause excessive restric on to the
water fl ow.
2
Install a Thermosta c Mixing
Valve at each point-of-use
(for example, kitchen sink,
bathroom sink, bath, shower).
Consult the valve manufacturer’s
instruc ons or a qualifi ed person.
Figure 14 - Install Thermostatic Mixing
Valves at each point where hot water will
be used.
WARNING! Even if the water
heater’s thermostat(s) are set to a
rela vely low temperature, hot water
can scald. Install Thermosta c Mixing
Valves at each point-of-use to reduce
the risk of scalding. (page 4.)
3
For water heaters that are fed
by a solar water hea ng
system (or any other pre-hea ng
system), always install a Thermosta c
Mixing Valve or other temperature
limi ng device in the inlet water supply
line to limit water supply inlet
temperature to 120°F. Solar water
hea ng systems can supply water with
temperatures exceeding 170°F and
may result in water heater
malfunc on.
WARNING! Hot water provided
by solar hea ng systems can cause
severe burns instantly, resul ng in
severe injury or death (page 4).
Step 7:
1
Connect the water
supply
Determine the type of water pipes in
your home. Most homes use copper
water pipes, but some use CPVC or
cross-linked polyethylene (PEX). Use
fi ngs appropriate for the type of pipe
in your home. Do not use iron or PVC
pipe – they are not suitable for potable
water.
2
Connect the cold water
supply using 3/4 inch
Na onal Pipe Thread “NPT”
to the cold water inlet nipple.
For ease of removing the water heater
for service or replacement, con-
nect the water pipes with a coupling
called a union. We recommend using
a dielectric-type union (available at
Lowe’s® ). Dielectric unions can help
prevent corrosion caused by ny elec-
tric currents common in copper water
pipes and can help extend the life of
the water heater.
12 • Residen al Electric Water Heater Use and Care Guide
IF YOU HAVE COPPER
PIPES:
If your home has copper water
pipes, you can solder the water
pipe connec ons or use compres-
sion fi ngs which don’t require
soldering. Compression fi ngs
are easier to install than soldering
pipe. Check with local plumbing
offi cials to determine what types
of pipe materials are suitable for
your loca on. Do not use lead-
based solder.
NOTICE: Do not solder pipes while
they are a ached to the water
heater. The water heater’s inlet
and outlet connec ons contain
non-metallic parts which could be
damaged. The proper way to con-
nect the water heater to copper
water pipes is as follows:
• Solder a short length of pipe
(about a foot or so) to a thread-
ed adapter using only 95/5 n-
an mony or equivalent solder.
A ach the threaded adapters to
the water heater’s connec ons
(using thread sealant tape or
pipe joint compound). Connect
the home’s water pipes by sol-
dering, keeping the connec ons
at the water heater cool with
wet rags.
INSTALLATION
INSTALLATION
Residen al Electric Water Heater Use and Care Guide • 13
NOTICE: Most water heater models
contain energy saving heat traps in the
inlet and outlet connec ons. Do not
remove the heat traps.
3
Connect the hot water supply
using 3/4 inch NPT to the hot
water outlet. Follow the same
connec on guidelines as for the cold
water supply.
4
Install insula on (or heat tape)
on the water pipes especially if
the indoor installa on area is
subject to freezing temperatures.
Insula ng the hot water pipes can
increase energy effi ciency.
5
Double check to make sure the
hot and cold water pipes are
connected to the correct hot
and cold water fi ngs on the water
heater.
6
If needed, install (or adjust) the
home’s Pressure Reducing
Valve to 50-60 psi and install a
Thermal Expansion Tank.
Figure 15 - A Pressure Reducing Valve is
required if your home’s water pressure is
above 80 psi.
Figure 16 - The Thermal Expansion Tank
should be pressurized with air, to match the
home’s incoming water pressure.
Step 8:
Verify connec ons
and
completely fi ll tank
To remove air from the tank and allow
the tank to fi ll completely with water,
follow these steps:
1
Remove the aerator at the
nearest hot water faucet. This
allows any debris in the tank or
plumbing system to be washed out.
2
Turn the cold water supply
back on.
Full-fl ow ball valve
Figure 17 - Fully open the cold water supply
valve.
3
Open a hot water faucet and
allow the water to run un l it
fl ows with a full stream.
4
Let the water run full stream
for three full minutes.
5
Close the hot water faucet and
replace the aerator.
6
Check inlet and outlet connec-
ons and water pipes for leaks.
Dry all pipes so that any drips
or leaks will be apparent. Repair any
leaks. Almost all leaks occur at connec-
ons and are not a tank leak.
INSTALLATION
14 • Residen al Electric Water Heater Use and Care Guide
NOTICE: The tank must be com-
pletely empty of air and full of
water before connec ng electri-
cal power to avoid “Dry Firing.”
Dry Firing may result in the upper
element burning out. This is a
common installa on mistake. Af-
ter you make the water connec-
ons, but before you connect the
electrical power, open a hot wa-
ter faucet and let the water run
full un l all the air is removed.
Let the “hot” water run full for
three minutes or longer before
connec ng any electrical wires. A
Dry Fired upper hea ng element
is an installa on error and is not
covered under warranty.
If Dry Firing occurs, replace the
upper hea ng element according
to the instruc ons on page 21.
Step 9:
Make electrical
connec ons
WARNING! Working on an ener-
gized circuit can result in severe injury
or death from electrical shock.
NOTICE: Do not turn electrical power
on unless you are sure all of the air is
out of the tank and the tank is com-
pletely full of water. If power is applied
before the tank is completely full of
water, the upper element will burn out
(Dry Fire).
1
Be sure the electrical power to
the water heater is turned
OFF at the circuit breaker
panel (or remove the circuit’s fuses).
2
Using a non-contact circuit
tester, check the wiring to
make certain the power is OFF.
3
Check the water heater’s data
plate and ensure that the
home’s voltage, wiring size
(ampacity) and circuit breaker ra ng
and type are correct for this water
heater. Refer to the wiring diagram
located on the water heater for the
correct electrical connec ons. Ensure
that wire sizes, type, and connec ons
comply with all applicable local codes.
In the absence of local codes, follow
NFPA-70 and the current edi on of the
Na onal Electric Code (NEC).
4
Remove the cover on the
electrical junc on box on the
top of the water heater.
Figure 18 - The water heater’s electrical
requirements can be determined from the
data plate.
5
Install wiring in an approved
conduit (if required by local
codes). Use a UL listed or CSA
approved strain relief to secure the
electrical wiring to the water heater.
6
Connect the ground wire to
the green ground screw.
Connect the home’s two
power wires to the water heater’s two
power wires. Use suitable wire nuts or
other approved means to make the
power connec ons.
Figure 19 - Connecting the electrical wires.
INSTALLATION
INSTALLATION
Residen al Electric Water Heater Use and Care Guide • 15
INSTALLATION
Replace the junc on box cover
and secure with the screws
provided.
WARNING! Be sure cover is secured
to reduce the risk of fi re and electric
shock.
Step 10:
Adjus ng
the
Temperature
With the installa on steps completed,
you may adjust the water heater’s tem-
perature se ng if desired.
1
Set the thermostat(s) to
desired temperature. The
thermostat(s) on this water
heater have been factory set to
approximately 120°F to reduce the risk
of scald injury. You may wish to set a
higher temperature to provide hot
water for automa c dishwashers or
laundry machines, to provide more hot
water capacity, and to reduce bacterial
growth. Higher tank temperatures
(140° F) kill bacteria that cause a
condi on known as “smelly water” and
can reduce the levels of bacteria that
cause water-borne diseases.
WARNING! Higher temperatures in-
crease the risk of scalding, but even at
120°F, hot water can scald (page 4).
If you increase the water heater’s tem-
perature se ng, install Thermosta c
Mixing Valve(s) at each point-of-use to
reduce the risk of scalding.
Figure 20 - Adjust Thermostat Mixing
Valves at each point-of-use 120°F or
lower.
To adjust the water heater’s thermo-
stat:
• Be sure the electrical power to the
water heater is turned OFF at the
circuit breaker panel (or remove the
circuit’s fuses).
WARNING! Working near an ener-
gized circuit can result in severe injury
or death from electrical shock. Check
wires with a circuit tester to make sure
power is off .
• Remove the upper and lower access
panels and fold away the insulation.
• Turn the water temperature dial
clockwise ( >>) to increase the tem-
perature, or counter clockwise ( << )
to decrease the temperature. Adjust
both thermostats to the same tem-
perature setting. To avoid a shortage
of usable hot water, do not adjust
the upper thermostat to a tempera-
ture setting that is higher than the
lower thermostat’s temperature
setting.
NOTE: Most models have two thermo-
stats, but some models may only have
one. If your water heater has only one
thermostat, it is located behind the
lower access panel.
• Fold the insulation back in place and
replace the access panels.
WARNING! Be sure panels are
secured to reduce the risk of fi re and
electric shock.
2
Turn the electric power back
on.
3
Wait for the water to heat up.
It may take several hours for a
tank of cold water to heat up.
If you have no hot water a er two
hours, refer to “No Hot Water” Section
on page 17.
WARNING! If you have increased
the temperature se ng and the
Thermosta c Mixing Valves are not
set properly (or not installed) you
could scald yourself while checking the
temperature.
4
Check water temperature at
several points of use in your
home (for example, bathtub
faucet, shower, or lavatory sink) and
adjust the Thermosta c Mixing Valves
as needed. If you aren’t sure how to
adjust the Thermosta c Mixing Valve
se ngs, or aren’t sure if you have
Thermosta c Mixing Valves, contact a
qualifi ed person.
7
INSTALLATION
16 • Residen al Electric Water Heater Use and Care Guide
Step 11:
Opera on
The water heater is now ready for
normal opera on. To keep your water
heater working safely and effi ciently
and extend its life, perform mainte-
nance according to the schedule on
page 20.
Vaca on
To save energy, lower the temperature
se ng on the thermostat(s) if you
plan to be gone for an extended me.
Follow the instruc ons in Step 10 for
adjus ng the thermostat to a lower
temperature se ng before you leave
and to properly raise the temperature
se ng when you return.
C AUTION! Hydrogen gas builds up
in a hot water system when it is not
used for a long period (two weeks
or more). Hydrogen gas is extremely
fl ammable. If the hot water system
has not been used for two weeks or
more, open a hot water faucet for
several minutes at the kitchen sink
before using any electrical appliances
connected to the hot water system.
Do not smoke or have an open fl ame
or other igni on source near the fau-
cet while it is open.
INSTALLATION
INSTALLATION
Need Assistance?
Call our Technical Assistance Hotline at 1-877-817-6750 .
We can help you with installa on, opera on, troubleshoo ng, or maintenance.
Before you call, write down the model and serial number from the
water heater’s data plate.
TROUBLESHOOTING
Residen al Electric Water Heater Use and Care Guide • 17
TROUBLESHOOTING
WARNING! Working near an
energized circuit can result in severe
injury or death from electrical shock.
WARNING! When you are fi nished,
be sure all covers are secured to re-
duce the risk of fi re and electric shock.
No Hot Water
The most likely reasons for an electric wa-
ter heater to produce NO hot water are:
• No electric power—a common
problem with new installations
• Burned out upper element (Dry
Fired) — a common problem with
new installations
• Tripped Energy Cut Off (red button
on upper thermostat)
• The water heater’s inlet and outlet
connections are reversed (usually
only in new installations)
• Broken upper thermostat (or wiring)
• A leak in the hot water side of the
plumbing system that exceeds the
water heater’s heating capacity and
makes it appear that the water heat-
er is producing little to no hot water
Follow these steps to diagnose and
correct common electrical problems:
1
Check the electric power to
the water heater. No hot
water is o en caused by a
problem with the home’s electrical
wiring or circuit breakers. You’ll need a
non-contact circuit tester. Follow these
guidelines:
• Locate the water heater’s circuit
breaker and turn it off (or remove
the circuit’s fuses).
• Locate the electrical junction box
on top of the water heater and
remove the cover.
• Identify the two power wires. The
power wires are usually black/black
or black/red—the green or copper
wire is the ground wire.
Figure 21 - Use a non-contact circuit
tester to check for electrical power.
• Turn the circuit breaker back on
(or install the fuses) and check the
power on both incoming power
wires using a non-contact circuit
tester.
• Turn the power off and replace the
cover on the electrical junction box.
If the water heater is not ge ng
power, contact a qualifi ed person to
have your home’s wiring or circuit
breakers checked.
2
Check the upper hea ng
element. If the water heater is
ge ng electrical power, check
to see if the upper hea ng element has
burned out. If the upper element is
burned out, you’ll have no hot water.
To check the upper element, you’ll
need a mul meter capable of reading
resistance.
• Turn the power OFF at the circuit
breaker or remove fuses.
• Remove the upper access panel.
• Remove the insulation to access
the upper thermostat and heating
element.
3
Check the top two screws of
the upper thermostat using a
non-contact circuit tester and
confi rm that power is off (screw
terminals 1 and 3 in photo on next
page).
• With the electrical power off , remove
the two power wires from the upper
hea ng element.
Figure 22 - Use a multimeter to check
the resistance of the upper heating
element.
4
Check the resistance of the
upper hea ng element using
a mul meter. Measure the
resistance between the two screw
terminals on the upper hea ng
element. A good element will have a
resistance ranging between 5 and 25
Ohms. If the resistance is:
Outside this range. Replace the ele-
ment (see the Rou ne Maintenance
sec on on page 20). On a new water
heater, a burned out upper hea ng
element is almost always caused by
turning the power on before the tank
was completely full of water (Dry Fire).
(See Step 8 in the Installa on sec on.)
Within this range. Rea ach the power
wires, making sure the wires are in
good condi on and the connec ons
are clean and ght. Next, check the
following:
TROUBLESHOOTING
18 • Residen al Electric Water Heater Use and Care Guide
TROUBLESHOOTING
5
Check/Reset Energy Cut Off
(ECO) Bu on.
Figure 23 - Energy Cut Off (ECO) button
The Energy Cut Off (ECO) shuts off pow-
er to the water heater’s elements if the
temperature of the water in the tank
gets too hot. If the ECO has tripped,
you’ll have no hot water. A tripped ECO
can usually be reset, but you should
have a qualifi ed person inves gate the
cause of the overhea ng and repair the
problem. Do not turn the power back
on un l the cause of the overhea ng
has been iden fi ed and repaired.
To check the Energy Cut Off (ECO)
• Turn off the power to the water heater.
WARNING! Working near an ener-
gized circuit can result in severe injury
or death from electrical shock. Check
power wires in the electrical junc on
box with a non-contact circuit tester to
make sure power is off .
• Press the red ECO reset button (see
photo above).
• The ECO was tripped if you hear a
click when it is reset. In most cases,
a tripped ECO indicates that the
tank overheated due to a problem
with one of the elements or ther-
mostats—have a qualified person
check the upper and lower elements
and thermostats and replace if nec-
essary.
• The ECO was not tripped if you
didn’t hear a click. In that case,
the upper thermostat should be
checked by a qualified person.
• Replace the insulation and the
upper access panel.
• Turn off the power to the water
heater.
WARNING! Be sure all covers are
secured to reduce the risk of fi re and
electric shock.
Insuffi cient Hot Water
or Slow Hot Water
Recovery
WARNING! Because of the increased
risk from scalding, if you set the water
heater’s thermostat(s) higher than
120°F, Thermosta c Mixing Valves
at each point-of-use are par cularly
important (page 4).
If the hot water is simply not warm
enough, there are several possible
causes:
• Faulty Thermostatic Mixing Valve in
a faucet or shower control (check
other faucets in the house for hot
water)
• One (or both) of the thermostats set
too low
• Water heater’s capacity too small
(or usage too high)
• Reversed plumbing connections or
melted dip tube (usually found soon
after new installation)
• Plumbing leak
• Bad lower heating element (or
lower thermostat)
• Low supply voltage
Thermosta c Mixing Valves. If the
hot water is simply not warm enough,
make sure the faucet you are checking
doesn’t have a defec ve Thermosta c
Mixing Valve. Many shower controls
now have built-in mixing valves. If
these devices fail, they can reduce the
amount of hot water the shower or
faucet delivers even though there is
plenty of hot water in the tank. Always
check the water temperature at several
faucets to make sure the problem is not
in a faucet or shower control.
Thermostats set too low. If the water
temperature at several faucets is too
cool, adjust the thermostat(s) accord-
ing to the instruc ons in Step 10 of the
Installa on sec on of this manual.
Undersized water heater. If your water
heater runs out of hot water too quick-
ly, it may be too small for your needs. If
the water heater is old, consider replac-
ing it with a larger model. If the water
heater is in good condi on, you may
be able to meet your family’s hot water
needs with the exis ng water heater by
installing Thermosta c Mixing Valves at
each point-of-use and then turning the
thermostat(s) to a higher se ng. See
“Step 10” on page 15.
You can also reduce your home’s hot
water needs by washing clothes in cold
water, installing fl ow restrictors on
shower heads, repairing leaky faucets,
and taking other conserva on steps.
Reversed connec ons or melted dip
tube. Check the hot and cold connec-
ons and make sure your home’s hot
water pipe is connected to the hot wa-
ter outlet on the water heater. Usually,
reversed connec ons are found soon
a er the installa on of a new unit. If
copper pipes were soldered while they
were a ached to the water heater, the
dip tube may have melted. The dip tube
is a long plas c tube inside the tank
a ached to the cold water inlet. If the
dip tube has melted, it can be replaced
by removing the cold water inlet con-
nec on, removing the old dip tube and
installing a new one.
Plumbing leak. Even a small leak in the
hot water side of the home’s plumbing
system can make it appear that the wa-
ter heater is producing li le to no hot
water. Locate and repair the leak.
Lower hea ng element not working.
If the low
er hea ng element (or, more
rarely, the lower thermostat) is not
working, you will have some hot water
but not as much as before. Because the
lower element does most of the work,
the lower element usually wears out
before the upper element. Replace the
lower element and/or thermostat if
necessary (see page 21).
TROUBLESHOOTING
Residen al Electric Water Heater Use and Care Guide • 19
Temperature Too High
If the water temperature is too hot:
• Install or adjust the Thermostatic
Mixing Valves for each point-of-use
(see manufacturer’s instructions),
or
• Adjust the thermostat(s) on the
water heater (see Step 10 in the
installation section of this manual).
A nonfunc oning thermostat or a
shorted hea ng element can cause ex-
tremely hot water. If the Temperature
and Pressure Relief Valve (T&P Valve)
releases large amounts of very hot
water, it is likely due to a shorted heat-
ing element, or more rarely a nonfunc-
oning thermostat, or the thermostat
does not fi t snuggly against the tank.
Very high water temperatures can also
cause the Energy Cut Off (ECO) to trip
(see page 18). Turn power off un l
this problem is fi xed.
Low Water Pressure
Check both the cold and hot water at a
sink to determine if the lower pressure
is only on the hot water side. If both hot
and cold faucets have low pressure, call
your local water u lity. If the low pres-
sure is only on the hot water side, the
primary causes of this are:
• Melted heat traps or dip tube. Sol-
dering copper pipes while they are
connected to the water heater can
melt the heat traps inside the hot
and cold water connections or the
dip tube (cold water side). Melted
heat traps or a melted dip tube can
restrict the flow of hot water. If that’s
the case, replace the heat traps or
dip tube.
• Partially closed supply valve. Open
the water heater’s supply valve
fully.
Drips from T&P Relief
Valve Discharge Pipe
A small amount of water dripping from
the Temperature and Pressure (T&P)
Relief Valve usually means the home’s
water pressure is too high or you need
a properly sized and pressurized Ther-
mal Expansion Tank. Refer to Step 1 in
the Installa on sec on of this manual
for more informa on. A large amount
of hot water coming from the T&P
discharge pipe may be due to the tank
overhea ng.
WARNING! Do not cap or plug the
T&P relief valve or discharge pipe,
and do not operate the water heater
without a func oning T&P Relief Valve
- this could cause an explosion.
Water pressure too high. High water
pressure can cause the T&P Relief
Valve to drip. Install a Pressure Reduc-
ing Valve (PRV) on the main cold water
supply line. Adjust the PRV to between
50 and 60 psi.
Thermal Expansion Tank. Install a
Thermal Expansion Tank. If a Thermal
Expansion Tank is already installed and
the T&P Relief Valve discharge pipe
drips, the Thermal Expansion Tank may
be pressurized to the wrong pres-
sure or the internal bladder may be
defec ve. Refer to the instruc ons that
came with the Thermal Expansion Tank
for more informa on.
Debris. In rare cases, debris can s ck
inside the T&P Relief Valve preven ng
the valve from sea ng fully. In that
case, the T&P Relief Valve discharge
pipe will drip. You may be able to clear
debris from the T&P Relief Valve by
manually opera ng the valve, allow-
ing small quan es of water to fl ush
out the debris. Refer to the T&P Relief
Maintenance sec on of this manual.
WARNING! When manually operat-
ing the temperature-pressure relief
valve, make sure that no one is in
front of or around the discharge out-
let. The water may be extremely hot
and could cause severe burns. Also
ensure that the water discharge will
not cause property damage.
If the water pressure is between 50
and 60 psi, a Thermal Expansion Tank
is installed and properly pressurized,
and the valve has been cleared of any
debris, and it s ll drips, the valve may
be broken—have a qualifi ed person
replace the T&P relief valve.
Water Odor
Harmless bacteria normally present in
tap water can mul ply in water heat-
ers and give off a “ro en egg” smell.
Although elimina ng the bacteria that
causes “smelly water” with a Chlorina-
on system is the only sure treatment,
in some cases, the standard anode
rod that came with your water heater
can be replaced with a special zinc
anode rod which may help reduce or
eliminate the odor. Contact a qualifi ed
person.
NOTE: To protect the tank, an anode
rod must be installed in the water
heater at all mes or the warranty is
void.
In cases where the “ro en egg” smell
is pronounced, you can raise the tank
temperature to 140°F in order to re-
duce bacteria growth in the tank.
WARNING! Because higher temper-
atures increase the risk of scalding, if
you set the thermostat(s) higher than
120°F, Thermosta c Mixing Valves
at each point-of-use are par cularly
important (page 4).
TROUBLESHOOTING
20 • Residen al Electric Water Heater Use and Care Guide
MAINTENANCE
Rou ne Maintenance
Rou ne maintenance will help your
water heater last longer and work more
effi ciently. If you can’t perform these
rou ne maintenance tasks yourself,
contact a qualifi ed person.
Water Heater Maintenance
A er the fi rst six months, drain and
fl ush the water heater and inspect the
anode rod. Depending on the hard-
ness of your water, repeat this process
at least annually, or more frequently if
needed. From me to me, you may
need to replace a hea ng element or a
thermostat. All three maintenance tasks
are described below.
Draining and Flushing the
Water Heater
Tap water contains minerals that can
form lime deposits on hea ng elements
or sediment in the bo om of the tank.
The amount of lime deposits or sedi-
ment depends on the hardness of your
tap water. The rate at which sediment
builds up depends on water quality and
hardness in your area, the tempera-
ture se ngs, and other variables. We
recommend draining and fl ushing the
water heater a er the fi rst six months
of opera on to determine the amount
of sediment build up. Draining sedi-
ment extends the life of the tank, heat-
ing elements, and drain valves.
• In areas with very hard water,
remove and check the heating ele-
ments whenever you drain the tank.
If you have heavy lime deposits on
heating elements, you will need to
replace them more often.
• Sediment may form large masses that
can prevent the tank from draining.
Have a qualified person use a de-lim-
ing agent suitable for potable water to
remove the sediment buildup.
• In most cases, it is easier and cheap-
er to replace lime-encrusted ele-
ments than trying to remove heavy
lime deposits.
To drain and fl ush the tank:
1
Locate the water heater’s
circuit breaker and turn it OFF
(or remove the circuit’s fuses).
Figure 24 - Circuit Breaker
2
Open a hot water faucet and
let the hot water run un l it is
cool.
Figure 25 - Water Faucet
WARNING! Be sure the water runs
cool before draining the tank to reduce
the risk of scalding.
3
Connect a garden hose to the
drain valve and place the other
end of the hose in a drain,
outside, or in buckets.
4
Turn the cold water supply
valve OFF.
5
Open the drain valve on the
water heater.
Figure 26 - Drain Valve
6
Open a hot water faucet to
help the water in the tank
drain faster.
NOTICE: DO NOT turn electrical power
back on unless the tank is completely
full of water.
7
Remove and inspect the anode
rod (see Repair Parts Illustra-
on on back cover for loca on
of the anode rod). Replace the anode
rod if it is depleted. Turn power off . Run
hot water un l it’s cool. Turn cold water
supply valve off . Open a hot water
faucet to depressurize tank. Locate and
remove the black plas c cover marked
“Anode” Use a “key hole” saw or similar
tool to remove the foam insula on
covering the anode rod. Once the
anode rod is exposed, use a 1 1/16”
socket wrench with an extension to
remove it. Inspect the anode rod and
replace if depleted. Apply thread
sealant tape or pipe joint compound
and reinstall the anode rod ghtly. It is
not necessary to replace the foam
removed to access the anode. Turn cold
water supply valve on. When hot water
runs full, close hot water faucet. Check
for leaks and repair if necessary. Turn
power on.
Figure 27 - Anode Rods from new (top) to
partially depleted (middle) to fully depleted
stage (bottom)
Anode Rod. The anode rod is a sacrifi cial
metal rod that helps reduce corrosion
and premature failure (leaks) in the tank.
The anode rod is a consumable item.
Inspect the anode rod a er the fi rst six
months of opera on when you drain and
fl ush the tank. Replace the anode rod if
it is substan ally worn out or depleted.
Therea er, inspect the anode rod annu-
ally or more frequently if needed. If you
use a water so ener, your anode rod will
MAINTENANCE
Residen al Electric Water Heater Use and Care Guide • 21
deplete faster than normal. Inspect the
anode rod more frequently, replacing
the anode rod as needed. Obtain new
anode rods from your local Lowe’s®
or have a qualifi ed person replace it.
(Anode rods are a consumable item and
are not covered under warranty).
8
If the sediment was present
when the tank was drained,
fl ush the tank by opening the
cold water supply valve and le ng the
water run un l no more sediment
drains from the tank. Close the drain
valve when you are done.
NOTICE: Do not turn power back on
un l the tank is completely full of wa-
ter. For complete instruc ons on fi lling
the tank, follow Step 8 in the Installa-
on sec on.
9
Refi ll the tank by opening the
cold water supply valve. Make
sure a hot water faucet is
open and the drain valve is closed.
Allow the hot water to run full for at
least three minutes to make sure the
tank has all the air removed and is
completely full of water. Failure to
perform this step can cause the upper
hea ng element to burn out. Once you
are certain the tank is completely full
of water, close the hot water faucet.
10
Restore power to the water
heater. It may take two hours
for the tank to heat up.
Replacing the Hea ng Element
WARNING! Working on an ener-
gized circuit can result in severe injury
or death from electrical shock. Turn
power off . Check wires with a non-
contact circuit tester to make sure
power is off . When you are fi nished,
be sure all covers are secured to re-
duce the risk of fi re and electric shock.
If you are not comfortable replacing a
hea ng element or thermostat your-
self, have this work done by a qualifi ed
person. To replace the hea ng ele-
ment, you’ll need the following tools
and supplies:
Figure 28 - Non-Contact Circuit Tester
• Always turn power OFF and check
the power wires with a non-contact
circuit tester before working on the
water heater.
Figure 29 - Heating Element (with
gasket)
• Check your water heater’s data
plate for the correct wattage and
voltage. Heating elements are
available Lowe’s® .
Figure 30 - Element Wrench
• Some regular sockets (1 1/2 inch)
may work, but regular sockets are
often beveled and may slip. Inex-
pensive element wrenches are
available at Lowe’s® .
• Garden hose to drain the tank
• Hand dishwashing soap to lubricate
the gasket
• A clean cloth to clean the threaded
opening
• A flat blade and a Phillips screw-
driver
Steps for Replacing the Hea ng
Element:
1
Turn the power OFF at the
circuit breaker or remove fuses.
Figure 31 - Circuit Breaker
2
Open the electrical junc on
box on top of the water
heater. Using a non-contact
circuit tester, check the power wires to
make certain the power is OFF.
Figure 32 - Non-Contact Circuit Tester
3
Open a hot water faucet and
let the hot water run un l it is
cool.
Figure 33 - Water Faucet
WARNING! Be sure the water runs
cool before draining the tank to re-
duce the risk of scalding.
4
Connect a garden hose to the
drain valve and place the other
end of the hose in a drain or
outside (or use buckets). Turn OFF the
cold water valve that supplies the water
heater. Open the drain valve on the
water heater. Opening a hot water
faucet will help the tank drain faster.
MAINTENANCE
MAINTENANCE
22 • Residen al Electric Water Heater Use and Care Guide
MAINTENANCE
5
Remove the upper or lower
access panel on the water
heater, and then fold back the
insula on and remove the plas c
element/thermostat cover.
Figure 34 - Access Panel
6
With the tank drained and
power off , remove the power
wires from the element you
intend to replace.
7
Remove the bad element using
an element wrench.
8
Make sure the new element is
the correct replacement by
referring to the water heater’s
data plate for voltage and wa age
informa on.
9
Clean the threads in the tank
opening with a rag. Insert the
new element equipped with a
rubber gasket. NOTE: Use a drop of
hand dishwashing liquid to lubricate the
gasket to help avoid damaging the
gasket as it is being ghtened. Tighten
with an element wrench.
NOTICE: Do not turn power back on un l
the tank is completely full of water. For
complete instruc ons on fi lling the tank,
follow Step 8 in the Installa on sec on.
10
Refi ll the tank by opening the
cold water supply valve. Make
sure a hot water faucet is open
and the drain valve is closed. Allow the
hot water to run full for at least three
minutes to make sure the tank has all
the air removed and is completely full
of water. Failure to perform this step
can cause the upper hea ng element to
burn out. Once you are certain the tank
is completely full of water, close the hot
water faucet.
Figure 35 - Drain Valve
11
Check the newly installed
element for leaks. If a leak is
present, ghten the element
un l the leak stops. If you cannot stop
the leak, drain the tank and remove the
element. Inspect the gasket for dam-
age. If the gasket is damaged, replace
the gasket and re-install the element.
12
Once the element is success-
fully installed and there are no
leaks, replace the power wires,
thermostat cover, insula on, and access
panel. Make sure all wire connec ons
are ght. Replace the cover on the
electrical junc on box.
13
Restore power to the water
heater. It may take two hours
for the tank to heat up.
Replacing the Thermostat
WARNING! Working on an ener-
gized circuit can result in severe injury
or death from electrical shock. Turn
power off . Check wires with a non-con-
tact circuit tester to make sure power
is off . When you are fi nished, be sure
all covers are secured to reduce the
risk of fi re and electric shock.
To replace the thermostat, you’ll need
the following tools and supplies:
• A non-contact circuit tester. Always
turn power OFF
and check with a non-contact circuit tes-
ter before working on the water heater.
Figure 36 - Upper and Lower Thermostats
• A replacement thermostat (available
at Lowe’s® ). Note that the upper
and lower thermostats are different
(above). Some models only have
one thermostat.
• A business card to check the gap
between the thermostat and the tank
• Tape and a permanent marker to
mark the wires
• A flat blade and a Phillips screwdriver
Steps for Replacing the
Thermostat:
1
Turn the power OFF at the
circuit breaker or remove fuses.
NOTICE: It is not necessary to drain the
tank to replace a thermostat.
2
Open the electrical junc on box
on top of the water heater. Using
a non-contact circuit tester, check
the power wires to make certain the
power is OFF.
Figure 37 - Non-Contact Circuit Tester
MAINTENANCE
Residen al Electric Water Heater Use and Care Guide • 23
3
Remove the upper or lower
access panel on the water
heater and carefully fold back
the insula on and plas c element/
thermostat cover.
4
Make sure the replacement
thermostat matches the
original thermostat.
5
Mark the wires with tape so
you’ll know how to put them
back on.
6
Disconnect the wires from the
bad thermostat and remove
the thermostat from the
metal moun ng clip.
7
Install the new thermostat in
the metal moun ng clip.
8
Make sure the new thermostat
fi ts snuggly against the tank.
You should NOT be able to slip
a business card between the thermostat
and the tank. If you can, bend the
thermostat moun ng clip un l the
thermostat fi ts ghtly against the tank.
9
A ach the wires following the
wiring diagram on the water
heater’s label. Make sure all
wire connec ons are ght.
10
Replace the plas c element/
thermostat cover, insula on,
and access panel.
11
Replace the cover on the
electrical junc on box.
12
Restore power to the water
heater. It may take two hours
for the tank to heat up.
T&P Relief Valve Maintenance
Read and follow the opera ng and
annual maintenance instruc ons
provided by the manufacturer of
the T&P Relief Valve (yellow label
a ached to T&P Relief Valve). If no
label is a ached to the T&P Relief
Valve, follow the instruc ons in
this sec on. Minerals in the water
can form deposits that cause the
valve to s ck or create blocked
passages, making the T&P Relief Valve
inopera ve. Follow these guidelines
• At least annually, operate the T&P
Relief Valve manually to ensure the
waterways are clear and the valve
mechanism moves freely (above).
Before operating the valve manu-
ally, check that it will discharge in a
place for secure disposal.
• After manually operating T&P Relief
Valve, remove any water in the
drain pan and wipe away any water
from the heater.
WARNING! Hot water will be
released. Before opera ng the T&P
relief valve manually, check that it
will discharge in a safe place. If water
does not fl ow freely from the end of
the discharge pipe, turn the power to
the water heater OFF. Call a qualifi ed
person to determine the cause.
Figure 38 - T&P Relief Valve
• At least every five years, have a
qualified person inspect the T&P
Relief Valve and discharge pipe.
Damage caused by corrosive water
conditions, mineral deposits, or
other problems can only be deter-
mined when a qualified person
removes and inspects the valve and
its components.
• Note that a dripping T&P Relief
Valve is usually caused by the
home’s water pressure being
too high or the lack of a Thermal
Expansion Tank. If your T&P Relief
Valve drips, see page 19.
MAINTENANCE
MAINTENANCE
DIAGRAMS
24 • Residen al Electric Water Heater Use and Care Guide
DIAGRAMS
Thermostat Wiring Diagram
REPAIR PARTS
25
Residen al Electric Water Heater Use and Care Guide • 25
REPAIR PARTS
Key No. Part Descrip on
1 ACCESS DOORS
2 THERMOSTAT COVERS (UPPER AND LOWER)
3 UPPER THERMOSTAT
4 LOWER THERMOSTAT
5 ELEMENT
6 ELEMENT GASKET
7 TEMPERATURE & PRESSURE RELIEF VALVES
8 HEAT TRAP NIPPLE
9 HEAT TRAP/DIP TUBE COMBINATION
10 ANODE ROD
11 HEAT TRAP/ANODE ROD COMBINATION
12 JUNCTION BOX COVER
13 DRAIN VALVE
LEGEND
Special anode rod (See “Anode Rod/Water Odor” section)
Temperature and Pressure Relief Valve is required, but may not
be factory installed.
Specifiy thermostat type when ordering
Repair parts may be ordered through your
plumber, local distributor, Lowe’s , or by calling
1-877-817-6750 . When ordering repair parts
always give the following information:
1. Model and serial number.
2. Item number and part description.
REPAIR PARTS
REPAIR PARTS
Key No. Part Descrip on
1 TEMPERATURE-PRESSURE RELIEF VALVE
2 OUTLET NIPPLE ASSEMBLY (SIDE CONNECT)
3 INLET NIPPLE (SIDE CONNECT)
4 JUNCTION BOX COVER (SIDE JUNCTION BOX)
5 UPPER AND LOWER ELEMENT
6 ELEMENT GASKET
7 THERMOSTAT BRACKET (EA.)
8 LOWER THERMOSTAT
9 TERMINAL COVER (SHORT)
10 LOWER THERMOSTAT w/HI LIMIT
11 TERMINAL COVER (LONG)
12 OUTER DOOR
13 JUNCTION BOX COVER (TOP JUNCTION BOX)
14 UPPER THERMOSTAT w/HI LIMIT
15 ANODE ROD
16 DRAIN VALVE
17 BASE PAN w/SIDE DRAIN (NOT INCLUDED)
18 JUNCTION BOX COVER (SIDE JUNCTION BOX)
19 PIPE INSULATION
20 HEAT TRAP/DIP TUBE COMBINATION
21 PLUG
* If Applicable
** Not Illustrated
Repair parts may be ordered through your
plumber, local distributor, Lowe’s , or by calling
1-877-817-6750 . When ordering repair parts
always give the following information:
1. Model and serial number.
2. Item number and part description.
18
12
13
20
21
SIDE CONNECT AND
MANUFACTURED HOME MODELS
26
26 • Residen al Electric Water Heater Use and Care Guide
REPAIR PARTS
REPAIR PARTS
Key No. Part Descrip on
1 THERMOSTAT COVERS (UPPER AND LOWER)
2 UPPER THERMOSTAT
3 LOWER THERMOSTAT
4 ELEMENT
5 ELEMENT GASKET
6 TEMPERATURE & PRESSURE RELIEF VALVES
7 HEAT TRAP/NIPPLE COMBINATION
8 HEAT TRAP/DIP TUBE COMBINATION
9 ANODE ROD
10 JUNCTION BOX COVER
11 DRAIN VALVE
12 DRAIN ACCESS PANEL
13 FRONT PANEL
14 TOP PANEL
15 INSULATION
LEGEND
Special anode rod (See “Anode Rod/Water Odor”
section)
Temperature and Pressure Relief Valve is required, but
may not be factory installed.
Specifiy thermostat type when ordering
Repair parts may be ordered through your
plumber, local distributor, Lowe’s , or by calling
1-877-817-6750 . When ordering repair parts
always give the following information:
1. Model and serial number.
2. Item number and part description.
TABLE TOP
MODEL
15
14
13
12
11
10
9
8
7
6
5
5
4
4
2
1
1
3
27
Residen al Electric Water Heater Use and Care Guide • 27
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