GE Refrigerator Evaporator fan won't always run

by Kevin
(Washington Court House, Ohio)

Hi. My refrigerator intermittently stops cooling. The compressor and condenser fan run, but when it quits working, the evaporato fan motor isn't running to circulate the cold air, causing the top part of the freezer to thaw out, and the bottom of the fresh food side to freeze things in the crisper bins. I found your video on YouTube that shows how to check voltages on the main control board. Today, my freezer was thawing out again. Compressor and condenser fan motor running, evaporator fan not running. I checked the voltage from the control board to the evaporator fan motor, pins 3&8 and got 14.52 VDC. The evaporator fan motor was not running. I checked the voltage on pins 3&4 and it was 1.45 VDC. I then opened the refrigerator and freezer doors. After three minutes, the voltage went to 4 VDC, then 8 VDC, then 13.45 VDC over about a 15 second time frame. The evaporator fan motor did come on and increased in speed with each corresponding increase in voltage supplied. Model # is DSS25KGRE. Can we tell if it is the control board or the fan motor from this test? I had also checked the thermistors by putting each of them into a small glass of ice water (32 degrees) and they were supposed to read 16.3K ohms, + - 5%. The one on the top of the evaporator read 14.8K, lower one in freezer was 16.4K. The ones in the fresh food side read 14.9K and 16.2K ohms.


Long story short, this thing still intermittently thaws out in the freezer side top two shelves, while freezing everything in the fresh food crisper bins. The issue is that the evaporator fan motor stops running and all of the cold air stays at the bottom of both sides. I have provided all of the readings that I could think of that may be necessary. Could you please let me know what part(s) I need to replace to get this thing working consistantly? Thaks so much, Kevin





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Answer

Hi Kevin,

Replacement parts in General Electric DSS25KGREWW Refrigerator
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Since the motor did run when the voltage was there the motor is ok. The thermistor readings are ok. I know they are a little out of range but I don’t feel like they are far enough to cause your problem. However the thermistors are a lot cheaper then the main board, which is what it will be if the thermistors don’t correct the problem. The one that read 14.4 is dead on so don’t replace that one. I say try the thermistors first and if that doesn’t work replace the maim board.

Thank you,
Shawn/administrator

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Shawn

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