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Payne PH2PNB036000AA Defrost Sensor Board
The defrost control board controls when to launch the defrost cycle which may be needed in order to continue normal heating and cooling operations. The defrost sensor board looks to a defrost sensor located in the outdoor unit to verify when the defrost cycle should begin.
Cues of an ailing Payne defrost sensor board
- The defrost sequence will not initiate even though there is excessive frost that needs to be removed
- The main control board may show an error signal if the defrost board goes out
- Air conditioning may stop operating due to lack of airflow through the outdoor unit
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