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International Comfort Products HHP036AKA1 Defrost Sensor Board
The defrost sensor board controls if and when to commence the defrost cycle which aids to get rid of the frost that collects on the outdoor unit. It depends on a defrost sensor located somewhere by the condenser to decide when the defrost cycle should begin.
Some warnings of a faulty outdoor defrost sensor board
- The AC may stop operating because of frost blocking the fins on the outside unit
- The control board could throw a particular error code produced when the defrost control board fails to receive a signal
- The defrost sequence has not run for quite some time even though there is quite a bit frost that needs to be removed
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