Before you replace your defrost board (and lay out sometimes serious cash in the process) check to make sure this sensor is firmly attached to the evap tube and shows low or 0 ohms resistance when ice is frozen to the coil. Sometimes it's this sensor which is cheap compared to a defrost board. These things will close at about freezing and open at 50-70deg F if good. If bad they usually won't close no matter how much ice is frozen to it.
Mrfixit
VA
7 years ago
Verified Buyer
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