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International Comfort Products N8MPN075B12A1 Defrost Sensor Board
The defrost sensor control board commences the defrost sequence which may be needed in order to get rid of the frost that collects on the outdoor unit. The control board depends on a sensor which is near the condenser somewhere, in order to ascertain when to initiate the defrosting cycle.
Simple signals your outdoor defrost sensor board will not live much longer
- The HVAC system control board may issue a particular error code referring to a failing defrost control board
- Defrost mode does not begin especially when there is a rather large amount of frost built up
- The system may stop operating at all because of frost blocking the fins on the outside unit
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