GE Refrigerator Repair Help and Tips
Reference Model: PSS25SGMBBS
Problem: Machine reverts to freezing temperatures on the fridge side regardless of temperature set by the user.
Diagnosis: If the user interface reflects the true temperature inside the fridge, the thermistors may be faulty AND/OR the control board is misinterpreting the information it is receiving from the thermistors.
Diagnosis: More help below...
Temp Thermistor Extra Helps and Tips - Some temperature and defrost thermistor helps and tips
You can test your thermistor(s) using an ohm meter or multi-meter.
The best way to do this is to remove the thermistor from the refrigerator so you can control the temperature of the sensor. You can let the sensor warm up to room temperature or grab a glass of ice water to test the thermistor. With the sensor warmed up to room temperature the sensor should read approximately 6.2K Ohms at 68 degrees F. With the thermistor submerged is a glass full of ice water, the sensor should be very close to 32 degrees F which should read approximately 16.3K Ohms. If the values that you are getting are far off from these readings, then the sensor is bad and should be replaced. If the reading you are getting is not consistent...where sometimes the ohm reading is correct and other times it isn't, even though the temperature hasn't changed, then the thermistor should be replaced.
Some GE refrigerator parts for our reference model#
Refrigerator or freezer temperature sensor ( also called a thermistor )
Item Number WR55X10025
Refrigerator defrost heater and bracket assembly
Item Number WR51X10055
Refrigerator air inlet cover/damper kit with fan motor
Item Number WR49X10091
Refrigerator main control board assembly with installation instructions
Item Number WR55X10942P
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