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14
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 electrical supply “OFF”.
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 adequate
drain.
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 terminate
to an adequate drain.
6. Close the drain valve.
7. Follow the instructions in the “Filling the Water Heater” section.
THERMOSTAT REMOVAL / REPLACEMENT
1. Turn “OFF” the electric power supply to the water heater.
2. Remove the outer door and fold back the insulation.
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.
FIGURE 13.
TEMPERATURE-PRESSURE
RELIEF VALVE OPERATION
The temperature-pressure relief valve must be manually operated at
least once a year.
When checking the temperature-pressure relief valve operation, make
sure that (1) no one is in front of or around the outlet of the temperature-
pressure relief valve discharge line, and (2) that the water discharge
will not cause any property damage, as the water may be extremely
hot, see Figure 9.
FIGURE 12.
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 the temperature-pressure
relief valve.
DRAINING
PERIODIC MAINTENANCE