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Leonard8300  
#1 Posted : Friday, May 13, 2011 10:00:32 AM(UTC)
Leonard8300

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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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Gene  
#2 Posted : Friday, May 13, 2011 1:27:02 PM(UTC)
Gene

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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
Leonard8300  
#3 Posted : Friday, May 13, 2011 2:49:23 PM(UTC)
Leonard8300

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Originally Posted by: Gene Go to Quoted Post
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
Gene  
#4 Posted : Friday, May 13, 2011 4:25:00 PM(UTC)
Gene

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Originally Posted by: Gene Go to Quoted Post
...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.
Leonard8300  
#5 Posted : Monday, September 19, 2011 8:45:23 PM(UTC)
Leonard8300

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Originally Posted by: Gene Go to Quoted Post
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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