Maytag HE21250PC, HE21282PC Troubleshooting, Start Up Conditions, Operational Conditions

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 heat- ed, it expands (thermal expansion) and dosed 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 refiefvalve is reached, the valve will relieve the excess pressure. The temper- ature-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 expan-

sionin the water system.Expansiontanks areavailablefor

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 thesesituations,

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.

Operational Conditions

SMELLY WATER

In each glssslined water heater there is installed at least one anode

rod (see parts section) for corrosion protection of the tank, Certain water conditions will cause a reaction between this rod

and the water. The most common complaint associated with the

anode rod is one of a "rotten egg smell". This odor is derived from hy&ogen sulfide gas dissolved in the water. The smell is th_ result

of four factors which must all be present for the odor to develop:

a. a concentration of sulfate in the supply water. b. tittle or no dissolved oxygen in the water.

c. a sulfate reducing bacteria within the water heater. (This harmless bacteria is non-toxic to humans.)

d. an excess of active hydrogen in the tank. This is caused by

the corrosion protective action of the anode.

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SmeUy water may be eliminated or reduced in some water heater models by replacing the anode(s) with one of less active material, and then chlorinating the water heater tank and all hot water fines. Call Maytag Customer Service at 1-800-788-8899 for an authorized servicerfor further information concerning an Anode Replacement Kit #66001068 and this Chlorination Treatment.

If the smelly water persists after the anode replacement and chlo- rinafion treatment, we can only suggest that continuous chlorina- tion and filtering conditioning equipment be considered to efimi- hate the water problem.

Do not remove the anode leaving the tank unprotected. By doing so, all warranty on the water heater tank is voided.

"AIR" IN HOT WATER FAUCETS

[ A WARNING

/HYDROGEN GAS: Hydrogen gas can be produced in a hot water system that has not been used for a long period of time (generally two weeks or more). /Hydrogen gas is extremely flammable and explo- _sive. To prevent the possibility of injury under these

conditions, we recommend the hot water faucet be _opened for several minutes at the kitchen sink

before any electrical appliances which are connect-

ed to the hot water system are used (such as a dish-

washer or washing machine). If hydrogen gas is pre- sent, there will probably be an unusual sound simi-

lar to air escaping through the pipe as the hot water faucet is opened. There must be no smoking or open flame near the faucet at the time it is open.

RUMBLING NOISE

In some water areas, scale or mineral deposits will build up on your heating elements. This buildup will cause a rumbling

noise. Follow "Element Cleaning/Replacement" instructions

to clean and replace the elements.

HIGH TEMPERATURE SHUT OFF SYSTEM

The water heater has a high limit shut offsystem with a reset button located above the upper element.

Follow the resetting instructions which refer to the high limit behind the access panel.