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Lennox G40UH-36A-045 Defrost Sensor Board
The defrost sensor board will determine when to initiate the defrost cycle which helps to remove frost build-up that may accumulate. The defrost sensor board relies on a temperature sensor located somewhere by the condenser to make the decision on when to initiate the defrosting cycle.
Signs the defrost sensor board has very little life left
- The AC may not work for the fact of frost blocking the fins on the outside unit
- Your main control board may throw an error code referring to a bad defrost board
- Defrosting never kicks in even though there is a lot of frost in the way
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Before you decide on buying or ordering do your best and double check the correct model as well as make a visual comparison in order to be sure the correct replacement defrost sensor board is being ordered. There is no need to install the part by yourself. Consult with a professional locally to hire and install the part for you.
Feel free to download your manual for help.
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