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Lennox G40UH-36A-070 Defrost Sensor Board
The defrost sensor board controls when to launch an important defrosting cycle which may be necessary to keep your outdoor unit from plugging up. The board depends on a defrost sensor which is near the condenser somewhere, in order to make the decision on when to initiate the defrosting cycle.
Signs your Lennox defrost sensor board is failing
- Your HVAC system will cease to operate because of the fact that there is too much frost
- Your main control board may throw an error of some type referring to the failed defrost sequence
- Unit defrost session has not run for quite some time even though there is a lot of frost that has built up
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If you decide on picking up or purchasing a replacement defrost sensor board for your Lennox G40UH-36A-070, do your due diligence and cross-check the model number as well as make a visual inspection so that you are positive that the right defrost sensor board is the one being purchased. Installation of a new defrost sensor board is a piece of cake 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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