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International Comfort Products GNL075N12C1 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin the defrost cycle in order to continue normal heating and cooling operations. The control board looks to a defrost sensor located in the outdoor unit to make the decision on when the defrost cycle should begin.
Simple indications of a weakening AC defrost sensor board
- The system may stop working for the fact of the safety features installed
- Unit defrost session does not begin especially when there is a rather large amount of frost on the unit
- The control board might issue an error number produced when the defrost board is bad
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