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-Ronin-  
#11 Posted : Monday, July 11, 2011 8:57:47 AM(UTC)
-Ronin-

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Originally Posted by: richappy Go to Quoted Post
You might have an intermittent defrost thermostat, very common. In addition, your adaptive defrost board might be intermittent. You can try just replacing the defrost thermostat and see if that fixes it. If the defrost thermostat is bulged on the plastic top, that would confirm it's bad.


Sounds good. I'll try replacing the defrost thermostat to see if that does the trick.
-Ronin-  
#12 Posted : Wednesday, July 27, 2011 5:11:48 PM(UTC)
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So i installed the replacement defrost thermostat and waited for like a week and sure enough frost started to build up in the back of the freezer. I dont think replacing the defrost thermostat is going to resolve the frost buildup problem. What should I do now?
richappy  
#13 Posted : Thursday, July 28, 2011 1:00:08 AM(UTC)
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Did the fridg go into defrost when you tried the second manual test?
-Ronin-  
#14 Posted : Thursday, July 28, 2011 12:03:26 PM(UTC)
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I actually didnt try the defrost tests. I just installed the defrost thermostat and hoped that it would work. Should I try the defrost tests again?
richappy  
#15 Posted : Friday, July 29, 2011 1:19:51 AM(UTC)
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Yes before you initiate the defrost test, remove the back freezer panel and check for defrost heat. If the heater fails to come on in a cold freezer, you have a bad defrost heater.
-Ronin-  
#16 Posted : Friday, July 29, 2011 5:52:38 AM(UTC)
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Originally Posted by: richappy Go to Quoted Post
Yes before you initiate the defrost test, remove the back freezer panel and check for defrost heat. If the heater fails to come on in a cold freezer, you have a bad defrost heater.


Well I know for a fact that the heater comes on when I unplug the refrigerator, wait like 20 seconds and then plug it back in. After a week or so when the frost builds up i have to remove the panel anyways to ensure that the frost behind the panel is melted.

I did a forced defrost a few days ago and saw the heater get hot and turn red, eventually melting the frost that was built up, so i dont think the heater is bad.

The last time I tried a defrost test was with the old defrost thermostat and only 1 of the 2 methods worked. Any idea what this might mean?
richappy  
#17 Posted : Friday, July 29, 2011 12:21:07 PM(UTC)
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I would replace the adaptive defrost board I mentioned before.
-Ronin-  
#18 Posted : Wednesday, August 3, 2011 9:02:54 AM(UTC)
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Originally Posted by: richappy Go to Quoted Post
I would replace the adaptive defrost board I mentioned before.


Ok I can try that, however if I replace the board and still have the same issue, does this mean that I'm basically out of luck and will have to buy a new refridgerator?

I've replaced the defrost thermostat and now i'll be replacing the adaptive defrost board...could it be something else causing the problem?
richappy  
#19 Posted : Wednesday, August 3, 2011 3:20:23 PM(UTC)
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All the evidence verifies the wiring is ok, only thing left is the adaptive defrost board.
-Ronin-  
#20 Posted : Thursday, August 4, 2011 5:58:07 AM(UTC)
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Originally Posted by: richappy Go to Quoted Post
All the evidence verifies the wiring is ok, only thing left is the adaptive defrost board.


Ok I'll give it a shot. Hopefully this will do the trick :confused:
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