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Customer Questions and Answers for Refrigerator Main Control Board by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM21564309
Manufacturer Part Number: WR55X10942C

Fix a refrigerator that won't cool or has temperature control issues with this main control board. Moderately difficult repair, taking 15-45 minutes.

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Questions & Answers

For Ge Refrigerator Main Control Board (Part Number: OEM21564309)

1 Answer

Hello Phyllis. Yes, you can do this repair. It comes with an instruction sheet on repairing the unit.

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1 Answer

Hello Thomas. It sounds like the main control board is bad and will need to be replaced on the unit.

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1 Answer

Hello Dan. You will need to remove some of the insulation to expose the wires to test. .

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1 Answer

Dan, You will want to check the thermistors on your unit and make sure that they are within range. The resistance rating is going to be 42.2K ohms at 0 degrees, 14.4K ohms at 37 degrees and 5K ohms at 77 degrees. If outside of this range then you will need to replace the thermistors. If the thermistors check ok then the most likely cause of failure would be the control board.

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1 Answer

Hello Yasuo. Test the thermistors and see if they are good. If so, you may need to replace the temp board in the unit.

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Tw for Model Number gss251frf ww

Twice in the past 2 weeks the frig freezer has shut down the sealed system...meaning compressor and condenser fan. While checking for loose connections, amp draw, voltage etc. during the first outage, I discovered that by replugging the cord into power receptacle the unit came on. It worked fine for another week or so and then stopped again, which we detected by melting ice and softer frozen food. So again I unplugged the unit, waited 5 or 10 seconds, reconnected and now it's working fine again. What should I check? The compressor is not overheating and drawing less than 2amps in ambient temp inside kitchen of 70 to 80degrees.

Hector for Model Number GSH25JSRF SS GE side by side fridge

This refrigerator is not cooling nor making Ice. Compressor not running (cold) not getting signal to run since this fridge seems as it does not have defrost timer all is controlled by main board based on inputs also does not have a regular thermostat (called control encoder board). It has 3 temp sensors (evap sensor/sensor FZ/SENSOR FF)OTHER INFORMACION condensing fan and evaporator both running need help before I spend for parts I have lean an a main control board because has Relays and may have failed? need help or what to test for because I have no idea how to rest the sensors or which one turns compressor on? need you expert opinion or reply thank you sincerely Hector

1 Answer

Hector, You will want to test for power from the terminal on the overload and on the terminal on the relay. If there is 120 vac then it would be more like an issue of a relay.

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