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See part 4 in the diagram
Replacing your Whirlpool Refrigerator Refrigerator Defrost Board play video
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Refrigerator Defrost Board

$216.60
Fix Number: FIX372260
Manufacturer #: 4388931
Manufactured by: Whirlpool

Product Description

This device acts like a clock. It continually advances and alternates between activating the cooling cycle and the defrost heater.

Videos For installing this part.

Replacing your Refrigerator Defrost Board

Replacing your Refrigerator Defrost Board play video

Replacing your Refrigerator Defrost Board

Replacing your Refrigerator Defrost Board play video
Questions and Answers

Questions and Answers

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Installation Instructions Provided by Fix customers like you.

Average Repair Rating: 4.4 / 5.0, 1 reviews.
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  • Customer:
    KEITH from BAIRD, TX
  • Parts Used:
    4388931
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Nutdriver, Socket set
evaperator icing
Several screws held panel concealing defrost timer to roof of fridge compartment, unplug unit, (very important) remove screws to get to timer, unscrew mounting screws & unplug wiring harness, reverse to mount but this did not fix my problem, had never seen anything else cause this problem but after looking at wiring diagram & seeing that the bi-metal was normally in closed position under 52* & also seeing that at that temp. the bi-metal open circuits & takes fridge out of defrost mode I was quite sure I had misdiagnosed or actually guessed & not diagnosed at all, purchased a bi-metal & removed the cover in the freezer covering the evaporator & replaced the bi-metal by cutting, stripping the wires & securing new part with wire nuts (always pull after twisting to be sure nuts are secure) plugged unit in and about a day later I heard ice cracking sound coming from the freezer & knew it was in defrost mode, also back cover covering evaporator was warm, It was fixed & was really glad to not have to remove cover in freezer every couple of days to defrost it with a hair dryer, diagnosing bi-metal for an ohm reading while below 52* could have saved me over a hundred dollars that the timer cost but now have a spare timer, good luck with your repairs
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Model Compatibility
This part works with the following models:
Fix Number: FIX372260
Manufacturer Part Number: 4388931
Brand
Model Number
Description
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