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International Comfort Products GDJ100M16C1 Defrost Sensor Board
The defrost control board instructs the system to activate the defrost sequence in order to remove frost build-up that may accumulate. The control board depends on a defrost sensor located in the outdoor unit to make the decision on when to begin.
What are the indications that my defrost sensor board needs replacing?
- The defrost feature never initiates especially when there is frost on the outdoor unit
- AC and heating system could not run due to the safety issue that the frost poses
- The HVAC system control board might give out a particular error code referring to a failing defrost control board
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