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Customer Questions and Answers for Thermostat by Whirlpool

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    • Part Number: AP4078076
    • MFG Part Number: 67003426
    • Made by: Whirlpool
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For Whirlpool Thermostat (Part Number: AP4078076)

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My freezer is frosting up on the back wall. The coils are totally iced over. I triggered a long defrost by holding the door light and pushing temp down 3 times. It kicked in and indeed defrosted the coils (fast!). What does this tell me? Thermostat bad? Other? We've sunk over $800 in repairs into this thing so I'm either going to tackle this myself or buy a new fridge. Thanks in advance!

Keith for Model Number GB2SHTXTB00

ANSWER Hello Keith, By the unit going into a defrost when you put it through the forced defrost cycle indicates that the heater and thermostat are working properly. You would need to replace the control board W10503278 on unit. 

Answered by AppliancePartsPros.com   |   Friday, December 14, 2012

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