GE GSS22QGMD BB Refrigerator Temperature

I am having an issue with the refrigerator temperature with my GE GSS22QGMD BB.

Issue: the temperature will sit between 20 and 25 degrees F (NO matter what i set the temperature control at) then spike up to 60 degrees for a short period and then back down to between 20 and 25 degrees as a constant.

Steps Taken: I have replaced the following ....
Defrost Heater Kit - WR51X10101 (was bad, freezer kept frosting)
Main Control Board - WR55X10942 (it was bad, i did cut the wire in slot 2 of the new board as instructed)
Temperature Sensor (Thermistor) - AP3185407 (ONLY the one in the upper left of the refrigerator side)


Do you think replacing the other two Temperature Sensors (Thermistors) in the freezer section will have any affect on the issue? Could it be something else that I am missing?

Thanks,
Bill







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