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Lennox G40DF-48C-110 Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrosting phase if necessary, to keep your outdoor unit from plugging up. The control board looks to a specific sensor which is near the condenser somewhere, in order to verify when to begin.
Do you know if your outdoor defrost sensor board needs replacing?
- Unit defrost session never initiates even when there is a large quantity of frost on the external unit
- The main circuit board might issue a specific error code produced when the defrost control board fails to receive a signal
- The HVAC system could cease to function because of frost blocking the fins on the outside unit
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If you are going to be buying or purchasing, do your due diligence and double check the correct model as well as make a visual comparison in order to be sure the right defrost sensor board is the one being purchased. Installation of a new defrost sensor board is not difficult if you energy and have the tools to do it right.
Feel free to download your manual for help.
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