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International Comfort Products CHP230AKA1 Defrost Sensor Board
The defrost sensor control board instructs the outdoor unit to begin the defrost sequence in order to remove frost build-up that may accumulate. The defrost sensor board relies on a defrost sensor which is near the condenser somewhere, in order to determine when to begin.
Warnings of a faulty defrost board
- Most systems will stop functioning due to the fact that there is too much frost
- Defrost session never runs even though there is a lot of frost on the external unit
- The control board may throw an error of some type referring to the failed defrost sequence
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