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International Comfort Products H8DNL075B12A1 Defrost Sensor Board
The defrost control board determines when or if to start the defrost cycle which actually helps to remove frost build-up that may accumulate. It relies on a temperature sensor located near the condenser to verify when to begin.
Warnings your defrost board is in dire straights
- The whole system may stop functioning due in part to frost blocking the fins on the outside unit
- The main board could signify a specific error code produced when the defrost control board fails to receive a signal
- The defrost sequence will not kick in especially when there is frost on the outdoor unit
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