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Customer Questions and Answers for Refrigerator Temperature Sensor by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM9556230
Manufacturer Part Number: WR55X10025

Fix uneven cooling or defrost issues with a new temperature sensor. Most DIYers complete this repair in under an hour with basic tools and our video.

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Questions & Answers

For Ge Refrigerator Temperature Sensor (Part Number: OEM9556230)

Dustin for Model Number PSS26NSWASS

Hello! My fridge is approximately 6 years old. Over last 2 months the fridge would begin to warm up to around 52 degrees and the freezer would warm up to around 15 degrees. Ice would also build up in freezer. After a few hours it would revert back to the correct temperatures of 37 and 0 degrees. After doing some research I had the defrost heater assembly and defrost thermostat replaced. Now, 2 weeks later, it is having same issue warming up again on both sides. What other items should I be looking at to replace? The temperature sensor? Thanks in advance! Dustin

1 Answer

Hello Dustin. With the icing issue, either the fan motor is bad or you are having sealed system issues. You will need to check the fan motor in the unit. It would cause both sections to warm up.

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1 Answer

Teresa, There really is not much difference with the change out of the thermistor between a bottom freezer and a side by side. The big difference is how to access the parts. To access the sensor you would need to remove the door from the unit and the baskets. The door is normally held in by 2 screws, one on each side, on the rail, lift the drawer out and remove the baskets in the unit. If the sensor is behind the rear wall then remove the rear wall and sensor will be accessible.

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Skiz for Model Number PSS25SGNABS

I have a GE PSS25SGNA/SS. The unit works great when I first plug it in, but after a few days, starts to experience wide temperature swings. Eventually water and ice are building up in the freezer section. I have already replaced the board, and did not clip or make any modifications, as my specific model was not called out. Since it seems fine when I first plug it in (temperature falls to set points), I'm thinking the issues may be around the defrost cycle. So I was thinking of replacing the defrost sensor. While I'm in there I think it would be smart to replace the other temperature sensor(s) since the unit is 12 years old. How many do I have, and is this a good idea? Do you think I'm on the right track with the defrost sensor?

1 Answer

Hello Skiz, You need to check the defrost heater and the sensors. These can be checked from the control board. It is good that you did not clip any wires since you were correct in your interpretation of the instructions and no modifications should be done for your unit. I would also make sure the door seals and ice door are closing and seating properly in addition to verifying the voltage and polarity at the outlet. This actually sounds like a relay issue on the board. I know you said you have replaced the board but the new one could have issues, especially if you find the outlet is not wired correctly.

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1 Answer

Chris, there are two temp sensors in the freezer and two in the refrigerator section. If you view the Freezer Section, item number 241 and 243 are the temp sensors for those diagrams and on the Fresh Food Section and the Fresh Food Shelves section item number 242 is the temp sensor on those diagrams. This should help give you a brief idea of where they are located at. We do apologize for any confusion. Thanks.

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1 Answer

Hello Ivan, As per the tech sheet: F11 - MOTOR CONTROL UNIT ERROR: The Motor Control Unit has internal failure; repeating under or over voltage, or over current conditions. If failure occurs during high-speed spin the door unlocks after 3 minutes. Possible Causes/Procedure: 1. Unplug washer or disconnect power. 2. Check wire harness connections between the drive motor and the Motor Control Unit (MCU), and between the MCU and the Central Control Unit (CCU). Check the motor and do a continuity test. 3. Plug in washer or reconnect power. 4. Check the MCU by looking for operations of the drive motor. 5. Check the drive motor for powered rotations. 6. If the tub never moves, Replace MCU board WPW10163007. If the tub does turn, replace the CCU WPW10525353.

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Larry for Model Number GE model GSS20IETAWW

I bought a house with this refrigerator in it so I don't know the history of it. I do know it was new in 2007. When I plugged it in it appeared to be working fine. when I returned in a few days it was dead. That means no lights working, nothing. When I unplugged it and plugged it back in I had 1/2 second of power to the lights before it was dead again. I could hear a clicking noise in the defrost timer every time I unplugged it and plugged it back in. I replaced the defrost timer and the power stayed on and the frig appeared to be working. A few hours later I checked it and the walls inside the freezer around the top near the ice maker were hot. Not warm, hot. I could feel cold air coming out near the bottom inside the freezer but it wasn't enough to compete with the heat coming from the walls in the upper part of the freezer. I removed the appliance lights to rule out heat coming from them. It is not coming from the light bulbs. The compressor is running and so is the condenser fan, all are nice and clean. I'm not sure if the evaporator fan in the freezer was working, I will have to check that. I wondered if the defrost heater was stuck on or the defrost limiter was keeping the heater on but I think the heat would be felt lower in the freezer, not in the walls at the top. Now I'm wondering if it is the mother board. I don't see a defrost timer in the diagrams for this refrigerator so I'm wondering if the previous owner tried to fix a mother board problem by adding a defrost timer. I also see that the previous owner wrote down the ice maker information as if he did or was going to replace the ice maker. This is the area of the heat problem so maybe it is caused by the ice maker. Any help would be appreciated. The frig is too nice looking to trash it.

1 Answer

Hello Larry. It sounds like the main control board WR55X10942C will need to be replaced on the unit. It does not sound like a defrost issue.

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Robert H for Model Number gss20iembcc

My freezer is -5 my fridge side is 60. I replaced bad defroster heater and the thermal switch. This unit is building up ice on the bottom and freezing solid over the drain hole. I removed the back cover and the coils are not frosted up and the fan does run fine. The freezer is holding - 5 set on 4 the fridge side stays at 50-60 no matter where I set the control. I am getting plenty of cold air blowing through the bottom meat pan air control. I can turn this off for 2 hours then plug back in and it will work fine for a day or two.

1 Answer

Robert, You will want to check the damper in the refrigerator compartment to see if the damper is clogged with ice and make sure that it is opening and that air is coming through. The damper is in the upper left corner. If not then the issue would be caused by a faulty damper assembly and would cause back flow which would cause the drain to freeze.

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