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International Comfort Products PHF048K000A Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrost cycle which aids to get rid of the frost that collects on the outdoor unit. The board depends on a temperature sensor located in the outdoor unit to ascertain when the defrost cycle should begin.
General indicators that your the defrost sensor board has very little life left
- The defrost feature will not kick in despite that there is a large amount frost in the way
- Most systems will not work due in part to frost blocking the fins on the outside unit
- Your main control board may signify a specific error code produced when the defrost board is bad
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