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International Comfort Products CHP036AKA1 Defrost Sensor Board
The defrost sensor control board determines when or if to start the defrost sequence which may be necessary to rid your unit of frost that can build up. The control board depends on a temperature sensor located near the condenser to determine when to begin.
Hints your outdoor defrost sensor board should be replaced
- Defrost mode never runs despite the fact that there is quite a bit frost on the external unit
- The main board may show an error signal produced when the defrost control board fails to receive a signal
- AC and heating system could end up not running due in part to the frost issue
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