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I have a defrost problem (ice build up on evaporator over a few days). The refer never will go into defrost mode. I can jumper the Line and Defrost connector on the main control board and the defrost heater turns on. I changed the main control board and still have the same problem.
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Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455
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You may want to replace the evaporator thermistor (on top of the evaporator). This thermistor controls the defrost cycle. - The evaporator thermistor Part number: AP3185407
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Rank: Member
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Joined: 5/13/2011(UTC) Posts: 6
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Originally Posted by: Gene You may want to replace the evaporator thermistor (on top of the evaporator). This thermistor controls the defrost cycle. - The evaporator thermistor Part number: AP3185407
Thanks for the help. Is it the FF Thermistor or the Evap Thermistor? And where is it located? Leonard
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Rank: Advanced Member
Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455
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Originally Posted by: Gene ...You may want to replace the evaporator thermistor (on top of the evaporator). This thermistor controls the defrost cycle... All thermistors in this refrigerator are identical. Gene.
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Rank: Member
Groups: Registered
Joined: 5/13/2011(UTC) Posts: 6
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Originally Posted by: Gene All thermistors in this refrigerator are identical.
Gene. Problem is fixed. I changed the evap thermister and no change. Even after reinstalling the original computer. I then replaced the freezer and fresh food thermistor and now the referigerator will defrost by itself.
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