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International Comfort Products NTC7125BKA3 Defrost Sensor Board
The defrost control board controls when to launch the defrosting phase which may be necessary to keep the outdoor unit free from frost build-up. The control board is relayed information from a specific sensor located in the outdoor unit to make the decision on when the defrost cycle should begin.
Signals of a worsening AC defrost sensor board
- The defrost feature never kicks in even though there is a lot of frost that needs to be removed
- The main circuit board could display an alphanumeric error code referring to a failing defrost control board
- Your system could stop running for the fact of way too much frost build-up
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