Install Instructions
Residenal Electric Water Heater Use and Care Guide • 27
MAINTENANCE
3
Remove the upper or lower
access panel on the water
heater and carefully fold back
the insulaon and plasc element/
thermostat cover.
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 mounng clip.
7
Install the new thermostat in
the metal mounng clip.
8
Make sure the new thermo-
stat 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 mounng clip
unl the thermostat ts ghtly against
the tank.
9
Aach the wires following the
wiring diagram on the water
heater’s label. Make sure all
wire connecons are ght.
Replace the plasc element/
thermostat cover, insulaon,
and access panel.
Replace the cover on the
electrical juncon box.
Restore power to the water
heater. It may take two hours
for the tank to heat up.
Read and follow the operang and
annual maintenance instrucons
provided by the manufacturer of the
T&P Relief Valve (yellow label aached
to T&P Relief Valve). If no label is at-
tached to the T&P Relief Valve, follow
the instrucons in this secon. Miner-
als in the water can form deposits
that cause the valve to sck or create
blocked passages, making the T&P
Relief Valve inoperave. 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 operang the valve manually,
check that it will discharge in a place
for secure disposal. If water does
not ow freely from the end of the
discharge pipe, turn OFF the power
to the water heater. Call a qualied
person to determine the cause.
• At least every ve years, have a quali-
ed person inspect the T&P Relief
Valve and discharge pipe. Damage
caused by corrosive water condions,
mineral deposits, or other problems
can only be determined when a qual-
ied 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 24.
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MAINTENANCE