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Gene  
#1701 Posted : Wednesday, August 8, 2012 4:50:18 PM(UTC)
Gene

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Originally Posted by: JABIII Go to Quoted Post
Gene,

Yes, I had them out of the unit and froze the thermostat in a block of water.


In such situation it should show continuity for a good thermostat.

Gene.
JABIII  
#1702 Posted : Wednesday, August 8, 2012 5:15:14 PM(UTC)
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Originally Posted by: Gene Go to Quoted Post
In such situation it should show continuity for a good thermostat.

Gene.



It showed nothing, no BEEEP, I believe there was some resistance, Like M-ohms. Now, I ask you, what does this thermostat do, restart the timer after the defrost cycle??? :confused:
Gene  
#1703 Posted : Wednesday, August 8, 2012 6:42:20 PM(UTC)
Gene

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It is connected in series with the defrost heater and controls the temperature during the defrost cycle. It is closed while the evaporator is cold and opens the circuit as long as the temperature reaches its limit. The defrost timer controls the defrost cycle by the time, providing power to the heater, and has nothing to do with the defrost thermostat.

Gene.
JABIII  
#1704 Posted : Thursday, August 9, 2012 3:52:27 AM(UTC)
JABIII

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Originally Posted by: Gene Go to Quoted Post
It is connected in series with the defrost heater and controls the temperature during the defrost cycle. It is closed while the evaporator is cold and opens the circuit as long as the temperature reaches its limit. The defrost timer controls the defrost cycle by the time, providing power to the heater, and has nothing to do with the defrost thermostat.

Gene.


OK, so I gather that the timer is running all the time and the thermostat just turns the heater on and off.

I also noticed that with the meter connected to the heater terminals, As I turned the timer, and got close to the "BIG CLICK" the voltage started slowly going up until I hit the "BIG CLICK" then the compreser and fan stop, and the voltage went to 120V and the heater got hot. is all that normal??
mw2425  
#1705 Posted : Thursday, August 9, 2012 2:02:15 PM(UTC)
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Thanks Gene. I have not checked for continuity yet, but I think it is likely that the control board failed, since the problem started right after a strong thunderstorm knock out the electricity for five hours.

Mike

Originally Posted by: Gene Go to Quoted Post
Hi Mike,

There is no defrost timer in your refrigerator. Defrost cycles controls by the control board inside the refrigerator (#5 at the diagram). Check the defrost heater and the defrost thermostat for continuity and, if there is nothing wrong, replace that control board.

Here are the breakdown diagrams and Replacement parts for Amana AFD2535DES REF - BOTTOM MOUNTS | AppliancePartsPros.com

Gene.
Gene  
#1706 Posted : Thursday, August 9, 2012 2:41:43 PM(UTC)
Gene

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Originally Posted by: JABIII Go to Quoted Post
...the compreser and fan stop, and the voltage went to 120V and the heater got hot. is all that normal??


Yes, it is normal. If the problem was really with the defrost then the defrost timer can be the culprit.

- The defrost timer Part number: 482493
Part number: 482493

Gene.
Gene  
#1707 Posted : Thursday, August 9, 2012 2:47:03 PM(UTC)
Gene

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Originally Posted by: mw2425 Go to Quoted Post
Thanks Gene. I have not checked for continuity yet, but I think it is likely that the control board failed, since the problem started right after a strong thunderstorm knock out the electricity for five hours.

Mike


Mike,

You probably right. Especially under such circumstances.

- The control board Part number: 12868513
Part number: 12868513

Gene.
JABIII  
#1708 Posted : Friday, August 10, 2012 3:05:21 AM(UTC)
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Originally Posted by: Gene Go to Quoted Post
Yes, it is normal. If the problem was really with the defrost then the defrost timer can be the culprit.

- The defrost timer Part number: 482493
Part number: 482493

Gene.


Gene,

Is there a way to test the timer? I know that it seems to be running all the time. (The timer that is.)

Also while I'm checking things I will check the thermostst that is in the frige. I assume it should be open cold, about 35deg. And closed warm, about 40 deg. I will let you know what I find out.

Thanks for the help so far,
Jake
Peter76  
#1709 Posted : Thursday, August 16, 2012 7:27:06 AM(UTC)
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I've got the same problem. Freezer working fine but starting to build frost slowly and fridge is warm but slightly cold. Cleaned the coils from the dust build up and all. Sears said its a motor problem over the phone but I wanted to see what others say so here a I am.


Can't find a diagram online to see where is where. I have a Kenmore side by side KM WHT SXS, 22CF. Any ideas?

Thanks
Gene  
#1710 Posted : Thursday, August 16, 2012 1:33:28 PM(UTC)
Gene

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Hi Peter,

What is the complete model number of the refrigerator?

Gene.
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