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Payne PG8MAA042090AAJA Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrosting phase if necessary, to continue normal heating and cooling operations. The board looks to a specific sensor located near the condenser to make the decision on when to begin.
Indications your outdoor defrost sensor board is in need of replacing
- The defrost feature never runs even though there is quite a bit frost that has built up
- The HVAC system could cease to operate due to the safety issue that the frost poses
- The primary control board could signify a particular error code if the defrost control board fails
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