20
Service and Maintenance (cont’d)
Temperature-Pressure Relief
Valve Operation
The temperature-pressure relief valve must be manually oper-
ated at least once a year.
TEMPERATURE-PRESSURE
RELIEF VALVE
DISCHARGE PIPE
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.
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.
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.
Thermostat Adjustments
The upper and lower thermostats have been factory set at
HOT (approximately 120°F) to reduce the risk of scald injury.
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.
To adjust the temperature setting for both upper and lower
thermostats, proceed as follows:
1. Turn “OFF” the electric power to the water heater at the
junction box.
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 (
) to decrease the temperature
setting.
4. Replace the insulation block, pad and access panel.
5. Turn “ON” the power supply.
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.
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.
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
replaced more often than an anode rod that appears to be
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.
Summary of Contents for HRE2930T
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