GE PFWS4400L0, Technical Service Manual

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2. Seat the heater assembly in the tub opening.
3. Use a torque wrench to tighten the 10-mm hex
nut to 31 in. lbs of torque.
Thermistor
To replace the thermistor:
1. Push the thermistor into the rubber gasket until
fully seated.
Note: Ensure heater assembly is fully seated in the
tub.
2. Follow steps 3 thru 5 of the heater assembly
replacement procedure to replace the heater
assembly. (See
Heater Assembly.)
Thermistor
Thermistor Specifi cations:
• 12 K

at 75°F (24°C).
• Resistance goes down as temperature goes up.
• Thermistor has a negative temperature
coef fi cient.
Speci fi c failures associated with the thermistor can
initiate error codes E4 and E5. (See
Error Codes.)
To remove the thermistor:
1. Follow steps 1 thru 5 of heater assembly
removal procedure. (See
Heater Assembly.)
Note: It may be helpful to pull the heater assembly
out of the washer, allowing easier access to the
thermistor.
2. Push inward on the 10-mm hex nut to relax the
rubber gasket and then pull out the thermistor.
To replace the heater assembly:
1. Slide the heater assembly into the tub opening
and inside the bracket attached to the outer tub.
Bracket
Caution: Proper torque must be applied to the 10-
mm hex nut to assure a proper seal. Under-torquing
could cause water leakage; over-torquing could
cause the tub to crack.
4. Replace the heater assembly cover.
5. Connect 2 wires to the heater assembly and the
wire harness to the thermistor.
Torque Wrench