Question about GE GSH25JFT
My GE Fridge, Model GSH25JFTA BB is getting VERY warm during defrost. Everything thaws, then re-freezes. The ice in the ice bin melts & re-freezes into an almost solid chunk, ice cream pools in the carton & re-freezes, etc. I replaced the thermistor, no change. The defroster is getting warm enough that's it's 'rippled' the seal on the sides of the back panel! After lots of reading, I'm guessing I need a new mother board-?? Any advice? And how do I check this? Thank you!
Your machine should have a limit thermostat as well as the thermister. It may payto change it first before the motherboard.
It looks like this, mounted on the top of the coil.
If that fails, and the machine goes back to normal cooling until the next defrost cycle, I can think of nothing but the motherboard as the culprit.
Posted on May 29, 2010
Look at the drawing below. #240 is the defrost thermostat and it clips near the top of the coils of the freezer. It is about the diameter of a quarter and has 2 wires coming out of it. Its job is to reach a certain temperature and then cut the power to the defrost heater. To check it you will need for it to be cold and then use an ohm meter to read ohms through the 2 wires coming from it while it is disconnected from the circuit. Hold it in your hand until you feel it click and then you should not be able to get a reading through it. A normal failure of this part is exactly opposite of what you are describing but it is the control that allows power to the heater.
What you are describing does sound more like the main board going bad. Sometimes when it cycles on to cool you can hear a clicking from the board but not always. I also have found some loose solder joints on the relays on that board. Be aware if your going to look at it the unit needs to be unplugged as 110 volts will be present.
Here are the part numbers.
Defrost thermostat is WR50X10068
The board is WR55X10942
Posted on May 29, 2010
Testimonial: "Thanks for the very helpful (& FAST!) response & photo! I was incorrect in my original posting - the thermostat has been replaced (not thermistor), which didn't change anything. I'll check solder joints on the mother board as you mentioned. Thank you SO much!"
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Posted on Jan 02, 2017
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