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Sanyo KHS1872 Defrost Sensor Board
The defrost control board instructs the outdoor unit to begin the defrost sequence which helps to rid your unit of frost that can build up. The control board relies on a defrost sensor which is near the condenser somewhere, in order to ascertain when the defrost cycle should begin.
Clues your defrost board has little life left
- The system may stop operating at all because of the fact that there is too much frost
- The defrost sequence does not begin especially when there is a rather large amount of frost on the unit
- Your main control board may issue a type of error code produced by a failing defrost board
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