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Panasonic CU-XE9PKUA Defrost Sensor Board
The defrost control board is jobbed with determining when to begin the defrost cycle which may be necessary to continue normal heating and cooling operations. The defrost sensor board is relayed information from a sensor which is near the condenser somewhere, in order to make the decision on when to initiate the defrosting cycle.
Signals your outdoor defrost sensor board is dead
- The defrost sequence does not run especially when there is frost that makes the unit run like crap
- The primary control board may throw an error signal produced by too much frost
- Most systems will cease to function due in part to the safety features installed
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