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International Comfort Products TNE075F14A1 Defrost Sensor Board
The defrost control board controls if and when to commence the defrosting phase which may be necessary to rid your unit of frost that can build up. The board looks to a specific sensor located in the outdoor unit to determine when to initiate the defrosting cycle.
Important clues of a poorly performing defrost board
- Self defrost sequence has not run for quite some time even when there is a large quantity of frost in the way
- Most systems will stop operating at all because of the frost issue
- The control board might issue an error of some type produced by a bad defrost control board
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