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International Comfort Products T8DNL100L20B1 Defrost Sensor Board
The defrost sensor board will begin the defrosting phase which helps to keep the outdoor unit free from frost build-up. The defrost board relies on a defrost sensor located near the condenser to ascertain when to begin.
Some warnings of an unhealthy defrost board
- Defrost session refuses to run even though there is excessive frost in the way
- The AC may cease to function due to way too much frost build-up
- The main board may issue a particular error code produced when the defrost board is bad
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