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International Comfort Products N9MP2050B12A1 Defrost Sensor Board
The defrost sensor board controls when to launch the defrosting phase if necessary, to keep your outdoor unit from plugging up. The control board depends on a temperature sensor located in the outdoor unit to verify when the defrost cycle should begin.
What are the signs that the International Comfort Products defrost sensor board is dying?
- Air conditioning may stop running due in part to frost blocking the fins on the outside unit
- The HVAC system control board may issue a type of error code when the defrost control board refuses to initialize properly
- Defrost session never starts especially when there is a rather large amount of frost on the outdoor unit
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