Troubleshooting, Drain Valve Washer Replacement

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.

TROUBLESHOOTING

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.