GE PROFILE PSW23PSTBSS

[RefTech]

Tried searching the forums for this but didn't come up with anything on this model#...GE Profile PSW23PSTBSS, display temperatures don't match what my fluke thermometers show. Freezer display shows 4 degrees F, fluke shows -6, at times there is at least a 10 degree difference in the refrigerator display (warmer) and my fluke (showing colder). Took out both thermistors in freezer and 2 of the 3 out of the refrigerator (did not pull the custom cool drawer thermistor) and all read 13.x kohms in ice water, and all read 5.x kohms at room temperature. Since they read so close at both temperatures I am leaning on the thermistors being good. Being that my refrigeration system is working properly, all fans are working, is this a main board issue as I am suspecting? Unable to locate any information on actual temperature to ohms readings for these thermistors in print, found a sheet behind the front lower cover but it does not contain information on the thermistors. This thing with its motherboard, inverter driven compressor, thermistors, fan speed variation and fan cycle delay seems as complicated as the industrial ammonia refrigeration systems I work on, way too complicated for a home refrigerator. Thanks

[johntech]

Need to check all thermistors from the board without opening the doors so you can test at operating temps. 

[Hiroshi]

I wouldn't make an issue of the thermometer not matching the display temps... is the food in the fridge the correct temp? Milk keeping?

Freezers always fluctuate between 10 and 0 degrees F during defrost cycles and off cycles... that is normal operating range.