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Lennox CB27UH-042 Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrosting phase which may be necessary to get rid of the frost that collects on the outdoor unit. The board relies on a sensor that can be found near the condenser, in order to make the decision on when to initiate the defrosting cycle.
Signals of a faulty defrost sensor board
- The primary control board might give out a particular error code produced by a bad defrost control board
- The defrost feature refuses to run even though there is quite a bit frost on the outdoor unit
- The whole system may stop operating due in part to way too much frost build-up
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Before you decide on buying or ordering any Lennox CB27UH-042 part do your best and double check the correct model and also make a visual comparison so that you are positive that the right defrost sensor board is the one being purchased. You do not need to install the part by yourself. Consult with a professional in your area to hire and install the part for you.
Feel free to download your manual for help.
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