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International Comfort Products TNK125N20A1 Defrost Sensor Board
The defrost control board determines when or if to start the defrosting phase which may be needed in order to rid your unit of frost that can build up. The defrost board relies on a sensor located in the outdoor unit to make the decision on when to initiate the defrosting cycle.
Important signs your outdoor defrost sensor board has to be replaced
- Most systems will stop running due to the fact of way too much frost build-up
- The main control board might give out an error of some type referring to the failed defrost sequence
- Defrost session will not kick in especially when there is frost on the outdoor unit
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