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Lennox CB30M-31 Defrost Sensor Board
The defrost control board will begin the defrosting phase which may be necessary to keep the outdoor unit free from frost build-up. The control board relies on a specific sensor located somewhere by the condenser to determine when the defrost cycle should begin.
Major signs of an unhealthy Lennox defrost sensor board
- The system will stop functioning for the fact of the frost blocking the flow of air
- The control board might issue a particular error code produced by too much frost
- Unit defrost session will not initiate even though there is excessive frost on the external unit
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Before buying or ordering any Lennox CB30M-31 replacement part do your best and double check the correct model and also make a visual comparison so that you are positive that the correct replacement defrost sensor board is the one being purchased. You do not have to replace the part all by yourself. Look for a professional in your town or city to do it for you.
Feel free to download your manual for help.
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