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International Comfort Products T9MPD100J20A1 Defrost Sensor Board
The defrost control board initiates the defrost sequence if necessary, to keep the outdoor unit free from frost build-up. The defrost board is relayed information from a sensor located in the outdoor unit to verify when to initiate the defrosting cycle.
Major signs the AC defrost sensor board is not going to last much longer
- The main circuit board may throw a specific error code referring to the failed defrost sequence
- Defrost session has not run for quite some time even though there is a lot of frost that makes the unit run like crap
- The HVAC system could end up not running due in part to the safety issue that the frost poses
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