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Customer Questions and Answers for Defrost Timer by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM6185094
Manufacturer Part Number: WR9X489

The Defrost Timer is an OEM part for GE refrigerators. It serves as a crucial component in managing the defrost cycle of the refrigerator, ensuring that frost buildup is regularly melted away from the evaporator coils. This timer periodically switches the refrigerator between cooling and defrost mode, helping to maintain efficient operation and prevent overcooling or excessive ice accumulation.

Symptoms of a bad Defrost Timer include:

  • Frost building up more than usual in the freezer compartment.
  • The refrigerator or freezer sections becoming too warm due to prolonged defrost cycles.
  • The refrigerator not transitioning out of defrost mode, leading to spoiled food due to inadequate cooling.

Causes of a bad defrost timer can include mechanical wear from continuous use, electrical failures that impede the timer’s operation, or simply aging components that no longer function reliably.

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

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Questions & Answers

For Ge Defrost Timer (Part Number: OEM6185094)

Clark for Model Number GE Profile TFT26PRDAAA - bought Early 2000's

I bought GE TFT26PRDAAA refrigerator in early 2000's. I replaced defrost heater Nov 2022. Failed again in Oct 2023. Replaced WR51X10055 Refrigerator Defrost Heater Assembly and WR50X10068 Defrost Thermostat this time. I could not find any WR55X10025 temperature sensors in freezer or refrigerator sections. Is the WR9X489 Refrigerator defrost timer the only device that controls the defrost cycles in my GE TFT26PRDAAA refrigerator? What is the defrost time and non-defrost run times for the WR9X489 Refrigerator defrost timer? Looks like defrost time cycle is about 30 minutes but the non-defrost times are somewhere between 12-16 hours.

2 Answers

Chris, This should be an 8 hour timer and should fully rotate in 8 hours. It could be a 10 hour but most are 8.

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2 Answers

Hello Chris, defrost timers only run when the compressor is running or when in a defrost cycle, your model's defrost timer has a run time of 16 hours and a defrost cycle time of 35 min, so about one revolution about every 16.5 hours of total run time. On average a ref runs about 50% of the time so it may take 1.5 - 2 days for one revolution.

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1 Answer

Greg, this model will use a main control WR55X10942C instead of a defrost timer for the defrost cycle. However, it would be recommended that the condenser coils are checked for dust accumulation as this can cause the unit to not cool back down properly after a defrost cycle, creating warm temperatures.

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1 Answer

Brad, you may need to manually advance the timer knob clockwise, this should take it out of defrost and put it in to run mode. Typically they will advance out of defrost on their own

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1 Answer

Hello Ron, most likely it is the defrost timer motor you are hearing, they usually get loud as they age and start to slow down, the part is WR9X489.

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1 Answer

Wessam, your model does not have a defrost timer but uses an adaptive defrost control which is located on the main control board on the back of the refrigerator. If the heater is good, the problem will be with the defrost thermostat located on the top of the evaporator or the defrost control is not putting the unit into defrost. Look at the defrost thermostat, if there is a bulge at the top of it, it is bad and needs to be replaced. When it is cold, it should also read closed and have continuity. the part number for the thermostat is WR50X10065, the control board is WR55X10942C

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1 Answer

Mike, the thermistors would need to be tested to ensure that they are registering temperatures properly, to include showing when temperatures increase. If the thermistors test good, and the shut off is during a defrost cycle, then it is likely that the main control is not opening the heater relay during the defrost cycle. If the compressor operates for several hours, then the evaporator frost pattern would need to be inspected as it could be possible that the compressor is not able to get the temperatures down properly.

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Sheila for Model Number TFX25PRYDWW

The coils in my freezer are not defrosting properly, causing my refrigerator to stay warmer than it should. I checked the timer and turned it on to defrost mode and the heater worked as it should. I waited 30 minutes and the refrigerator kicked back on, on its own. So I am stumped I thought it was the timer but with it cutting back on in 30 minutes i am unsure now. I should mention that only the bottom section of coils seemed to accumulate the ice. Are there separate heaters or is it all one unit?

1 Answer

Sheila, What you describe sounds like an incomplete defrost, possibly the defrost thermostat cutting the heat off before it completes the defrosting or possibly a stopped-up drain if this is ice instead of frost...

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