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International Comfort Products PA5560AKA1 Defrost Sensor Board
The defrost sensor board initiates the defrosting phase which aids to keep the outdoor unit free from frost build-up. The defrost board is influenced by a temperature sensor located somewhere by the condenser to make the decision on when the defrost cycle should begin.
Important signs your defrost board has very little life left
- The defrost feature will not initiate even though there is quite a bit frost that needs to be removed
- Most systems will stop running due to the fact of the safety issue that the frost poses
- Your main control board may signify an error number when encountering a problem
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