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International Comfort Products TCA460AKA1 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin the defrost cycle which may be necessary to continue normal heating and cooling operations. The control board is relayed information from a temperature sensor located somewhere by the condenser to decide when to begin.
Signals poorly running AC defrost sensor board
- Defrost session will not kick in despite the fact that there is a lot of frost on the unit
- The whole system may not work due to way too much frost build-up
- The primary control board could throw an error signal if the defrost control board fails
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