22
18. Replace access panel.
19. Turn “ON” electric power to water heater.
FIGURE 41.
Drain Valve Washer Replacement
.
NOTE: For replacement, use a 17/32" x 13/64" x 1/8" thick
washer available at your nearest hardware store. For
ordering a replacement washer, refer to the “Parts Order
List” section.
•
Before beginning turn “OFF” the electrical power supply to
the water heater.
•
Follow “Draining” instructions in the “Service and
Maintenance” section.
•
Turning counter clockwise, remove the hex cap below the
screw handle.
•
Remove the washer and put the new one in place.
•
Screw the handle and cap assembly back into the drain
valve and retighten using a wrench. DO NOT OVER
TIGHTEN.
•
Follow “Filling the Water Heater” instructions in the
“Installation Instructions” section.
•
Check for leaks.
•
Turn “ON” electric power to the water heater.
FIGURE 42.
Service
Before calling for repair service, read the “Start Up Conditions”
and “Operational Conditions” found in the Troubleshooting
section of this manual.
If a condition persists or you are uncertain about the operation
of the water heater, let a qualified person check it out.
Call Maytag Customer Service at 1-800-788-8899.
Start Up Conditions
THERMAL EXPANSION
Water supply systems may, because of such events as high
line pressure, frequent cut-offs, the effects of water hammer
among others, have installed devices such as pressure
reducing valves, check valves, back flow preventers, etc...to
control these types of problems. When these devices are not
equipped with an internal by-pass, and no other measures are
taken, the devices cause the water system to be closed. As
water is heated, it expands (thermal expansion) and closed
systems do not allow for the expansion of heated water.
The water within the water heater tank expands as it is heated
and increases the pressure of the water system. If the relieving
point of the water heater's temperature-pressure relief valve is
reached, the valve will relieve the excess pressure.
The
temperature-pressure relief valve is not intended for the
constant relief of thermal expansion.
This is an unacceptable
condition and must be corrected.
It is recommended that any devices installed which could create
a closed system have a by-pass and/or the system have an
expansion tank to relieve the pressure built by thermal
expansion in the water system. Thermal expansion tanks are
available for ordering through the Maytag Customer Service.
Contact the local water supplier and/or call Maytag Customer
Service at 1-800-788-8899 for an authorized servicer for
assistance in controlling these situations.
STRANGE SOUNDS
Possible noises due to expansion and contraction of some
metal parts during periods of heat-up and cool-down do not
represent harmful or dangerous conditions.
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
