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Lennox CB30U-31 Defrost Sensor Board
The defrost sensor control board instructs the outdoor unit to begin an important defrosting cycle which may be needed in order to keep the outdoor unit free from frost build-up. The defrost sensor board is influenced by a specific sensor which is near the condenser somewhere, in order to determine when to initiate the defrosting cycle.
Cues of a dying defrost sensor board
- The AC may stop functioning at all because of frost blocking the airflow outside
- Defrosting has not run for a while despite the fact that there is quite a bit frost that needs to be removed
- The control board may throw a specific error code referring to a failing defrost control board
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Before you decide on buying or ordering a new Lennox CB30U-31 replacement part, do your due diligence and make sure of the correct model and also make a visual comparison in order to be sure the correct defrost sensor board is the one being purchased. You do not have to replace the part all by yourself. Find a professional locally to replace the part.
Feel free to download your manual for help.
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