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Lennox G20 Defrost Sensor Board
The defrost control board will begin the defrost sequence which assists to keep the outdoor unit free from frost build-up. The defrost sensor board is relayed information from a sensor located somewhere by the condenser to determine when to begin.
Simple signals your Lennox defrost sensor board needs a replacement ASAP
- Your HVAC system will stop running at all because of way too much frost build-up
- Defrost session has not run for a while even though there is quite a bit frost in the way
- Your main control board could throw a specific error code produced by too much frost
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Before buying or ordering a new Lennox G20 replacement part do your best and make sure of the correct model as well as make a visual inspection so that you are positive that the correct defrost sensor board is being ordered. You do not need to install it yourself. Hire someone with experience in your community to replace the part.
Feel free to download your manual for help.
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