
Figure
b.If the fuse is functioning, check the six semiconductors on the heat sink visually for any damage. If damaged, replace motor control/wire harness assembly complete.
c.If no visible damage is present, check motor windings for any open circuits. (See Figure
Figure
Figure
9.Unplug the washer power cord and replace motor control board connec- tor JP4 when finished.
HEATER ASSEMBLY
The heater assembly located in the sump area of the outer tub is only on the MAH7500, LCD washer only. A thermistor located in the heater assembly monitors the water termperature in order to cycle the heater on/off to regulate the proper temperatures.
After the wash level has been reached, the control will turn the heater on until the heater thermistor indicticates the tempera- ture reaches or exceeds the target main wash temperature. Then the control will
The intent is to keep the temperature between the target main wash tempera- ture and 5°F below that. When the heater is off, it will remain off for at least 10 sec- onds, and when the heater is turned on, it will remain on for at least 10 seconds. The heater should be turned off and will re- main off when the maximum heater on time limit is reached (37 minutes), or the end of the wash period is reached. The heater will be turned off at the beginning of bleach fill at the end of main wash. The heater will be turned off during add fills.
Heater Will Not Turn On
1The heater will not turn on if the door is not closed or if there is a problem with the door sense circuit.
16010486
Revised 02/01 | ©2001 Maytag Appliances Sales Company |
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