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Thermistor
The thermistor is located under the tub and is
attached to the left side of the sump with 2 lock
tabs. A thermal mastic is applied to the fl at side
of the thermistor where it makes contact with the
underside of the tub.
During the hot wash cycle, the thermistor senses the
water temperature and turns the heating element
on until the water reaches 128°F.
Note:
If the thermistor is not operating, the hot
wash cycle will default to a set time for the heating
element to cycle.
The thermistor has a negative coeffi cient. As
the temperature at the contact point on the tub
increases, the thermistor's resistance decreases. The
thermistor has an approximate resistance value of
56.5K
Ω
at 72°F.
To remove the thermistor:
Disconnect power.
Open the dishwasher door and remove the
bottom rack.
Remove the dishwasher from its installation.
1.
2.
3.
Using a small fl at-blade screwdriver, lift each of
the 2 lock tabs (one on each side) that hold the
thermistor to the sump.
6.
Slide the thermistor off the sump.
Note:
Wear latex gloves to perform this repair.
Before installing the thermistor, evenly apply
white thermal mastic (included in box with part)
about 0.10-in. thick over the entire disk.
7.
Tab
Wire Harness
Lay the dishwasher on its back.
Disconnect the thermistor wire harness.
4.
5.
To remove the wash pump capacitor:
Follow steps 1 through 4. (See
To remove the wash
pump assembly
.) The capacitor is connected to the
motor with 2 wires and held in place with a 13-mm
nut.
Nut
Wire
Wire