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Adaptive defrost controller

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Having problems with the coil freezing over, blocking air to the fridge. I've changed the evaporator heater. It's still freezing

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  #1 (permalink)  
Old 03-20-2012, 11:51 AM
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Default Adaptive defrost controller
Model Number: msd2641kew   Brand: Maytag   Age: 1 - 5 years   

Appliance Parts from AppliancePartPros.com


Having problems with the coil freezing over, blocking air to the fridge. I've changed the evaporator heater. It's still freezing over. I am able to do a force defrost. Is the adaptive defrost control still good since I can initiate a force defrost?


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  #2 (permalink)  
Old 03-20-2012, 01:45 PM
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Would the defrost heater heat up if you force the defrost?

If it would, replace the ADC board.

If it would not, check the defrost thermostat for continuity.

- The ADC board Part number: AP4078743

Part number: AP4078743



- The defrost thermostat Part number: AP4080326

Part number: AP4080326



Here are the breakdown diagrams and Replacement parts for Maytag MSD2641KEW REF - SXS/I&W | AppliancePartsPros.com

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  #3 (permalink)  
Old 03-20-2012, 02:01 PM
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Thanks!

Yes, the heater did defrost the coil. I replaced it a few days ago. I've gone ahead and ordered the ADC and thermostat. It's not too expensive just to replace the entire defrost system. The unit's about 4 yrs old.
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Old 03-20-2012, 02:33 PM
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You are welcome. Replacing all these parts definitely will make the repair much more reliable.

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