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16
Maintenance
temperature-pressure relief valve operation, make sure that no one is in front of or around the outlet of the
temperature-pressure relief valve discharge line, and that the water discharge will not cause any property
damage, as 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.
If the temperature-pressure relief valve on the appliance weeps or discharges periodically, this may be due
to thermal expansion. You may have a check valve installed in the water line or a water meter with a check
valve. Consult your local water supplier or service agency for further information. Do not plug or remove the
temperature-pressure relief valve.
DRAINING
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 and unplug the water heater from the electric outlet.
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.
Disconnect water connections. Remove unit from wall. UNIT WILL BE HEAVY. Turn unit upside down and
drain unit into a suitable drain or receptacle.
REMOVING THE FRONT PANEL
1.
Turn off and unplug the water heater from the electric outlet and follow “DRAINING INSTRUCTIONS”.
2. Remove the temperature knob by pulling straight out.
3. Using a Philips screwdriver, unscrew the bottom screw securing the outer door.
4. Lift up and remove front panel.
THERMOSTAT REMOVAL/REPLACEMENT
REMOVAL
1.
Turn off and unplug the water heater from the electric outlet.
2.
Remove the front panel; see the “REMOVING THE FRONT PANEL” section in this manual. Remove the
insulation pad.
3. Using a 7mm wrench, loosen the nuts securing the high limit switch to the tank enough to rotate the switch
90° counterclockwise and slide it out from beneath the bracket. It is not necessary to remove the nuts
completely.
4.
Remove the 3 wires (white, brown, and green/yellow) from the thermostat at the spade connections,
carefully taking note of the original location of each wire.
5. Unscrew the 2 screws securing the thermostat to the front panel and remove thermostat.
REPLACEMENT
1. Place the new thermostat against the front panel and secure it with the two screws.