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Defrost Thermostat

Part Number: AP2639498
MFG Part Number: WR50X55
Made by: GE
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$27.74 $21.28

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Satisfaction Rating (1)

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9 Questions & Answers


Open - 55, close - 35

Genuine GE part. GE brands include General Electric, Hotpoint, RCA, and others. See all items in Refrigerator Defrost Thermostat, Sensor.
GE also makes various appliance models for Sears / Kenmore.

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Cross Reference Information

Part Number WR50X55 (AP2639498) replaces 3485, AH303545, EA303545, PS303545, SWR50X35, SWR50X55, WR50X0028, WR50X0030, WR50X0031, WR50X0032, WR50X0034, WR50X0035, WR50X0037, WR50X0055, WR50X0073, WR50X0074, WR50X0075, WR50X0090, WR50X0092, WR50X0102, WR50X0103, WR50X0117, WR50X102, WR50X103, WR50X117, WR50X28, WR50X30, WR50X31, WR50X32, WR50X34, WR50X35, WR50X37, WR50X5015, WR50X5022, WR50X5034, WR50X73, WR50X74, WR50X75, WR50X90, WR50X92.

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Not defrosting Thomas J. • Melrose, FL • November 21, 2014

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Repair Time Estimate

30-60 minutes 

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Repair Video

How to Replace Defrost Thermostat #WR50X55

Step by step instructions on how to replace a Defrost Thermostat #WR50X55 for Refrigerator made by GE, Kenmore. Note: This video is intended to give you the general idea of the part replacement procedure. Your appliance may differ depending on the manufacturer and model.


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Most Interesting

Continueing "DE "! tfx24ejb I have replaced the defrost thermostat.I checked continuity on both heaters in the freezer,and checked the timer,all functional. 48 hrs pass,i hear a sound like a woodpecker 3 times then the DE flashes. Twice this exact thing happens. I unplug the refridge,wait 5 minutes,replug the refridge back in and the DE clears for another 48hrs! When it starts all over again. I must be resetting the control panel by doing that but until that sound reacures 48 hrs later ,same sound,same result! What is next?

Scott M. for Model Number tfx24ejb


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I have a diagnostic panel and after several attemps to clear the " DE " continues to flash. Would that be that the defrost thermostat is not working? Maybe the timer? Fan runs and it is cold and holding.

Scott for Model Number tfx24ejb


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The refrigerator has failed but the freezer is functioning properly. Could this be a thermostat problem?

Crystal for Model Number GE TFF24ZBC


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Latest Questions

Why are both wires the same color on the WR50X55 defrost thermostat? How would I know which wire to connect to which color wire on the harness? And do the instructions for changing the bracket come packaged with the thermostat? Thanks for your help.

Neal for Model Number GE TFK20KJB


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Feezer will not defrost after a few days and refrigerator will get warm enough to spoil milk.

Rich for Model Number tfx27eh


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Hi. The contents of my freezer was thawing out and would refreeze. Loads of ice on the back panel. Discovered charred wire to lower heater element, repaired same but heater would not come on during defrost cycle. Removed defrost thermostat and heater now works. However original symptoms persist. I am going to order a thermostat but as defrost timer seems to work oK. I thought freezer should behave OK. Condenser coil is well frosted up and temp in freezer is approx. -5deg. C and the fridge wont go below +8deg.C. The cover over the fan /coil unit is removed for now. Q1. Would this affect the performance of the fridge due to the way the fan circulates cold air from freezer. Q2.Will a new thermostat restore my fridge to correct working condition?...Thanks..Mark

Mark for Model Number Fridge freezer CSX20ERAWH (approx.20yrs old)


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