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International Comfort Products T9MPT075F14A2 Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrost sequence which may be necessary to keep the outdoor unit free from frost build-up. The control board depends on a defrost sensor which is near the condenser somewhere, in order to ascertain when the defrost cycle should begin.
What symptoms are present when the AC defrost sensor board is dying?
- The main control board may issue an error number produced by too much frost
- Self defrost sequence has not run for a while even though there is a large amount of frost on the unit
- Your system could not run for the fact of too much frost
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