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Lennox CB30U-21 Defrost Sensor Board
The defrost sensor control board controls if and when to commence an important defrosting cycle in order to continue normal heating and cooling operations. The control board is influenced by a temperature sensor that can be found near the condenser, in order to verify when the defrost cycle should begin.
General warnings of a worsening AC defrost sensor board
- Defrost mode never starts even though there is a large amount of frost in the way
- Your system could stop operating at all because of the frost blocking the flow of air
- The control board may signify a specific error code produced when the defrost board is bad
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Before buying or ordering a replacement defrost sensor board for your Lennox CB30U-21, do your due diligence and make sure of the correct model as well as make a visual comparison so that you are positive that the correct replacement defrost sensor board is being ordered. Installation of the defrost sensor board is a breeze provided you know what you are doing and have the proper tools to do it right.
Feel free to download your manual for help.
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