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Lennox G40UH-48C-135 Defrost Sensor Board
The defrost sensor control board controls if and when to commence the defrosting phase which helps to keep your outdoor unit from plugging up. The board depends on a defrost sensor located near the condenser to determine when to begin.
Signs of an inadequate AC defrost sensor board
- The control board might give out an error number when the defrost control board refuses to initialize properly
- Self defrost sequence never begins even though there is excessive frost on the external unit
- The system may stop operating due in part to lack of airflow through the outdoor unit
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Before you decide on buying or purchasing a new Lennox G40UH-48C-135 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 replacement defrost sensor board is the one being purchased. The installing of the defrost sensor board is a piece of cake assuming you have the know-how and have the tools to do it right.
Feel free to download your manual for help.
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