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Carrier 58CTX11010022 Defrost Sensor Board
The defrost sensor board instructs the system to activate the defrost cycle in order to rid your unit of frost that can build up. The control board relies on a temperature sensor located in the outdoor unit to decide when to begin.
Key signs of a weakening defrost board
- Defrost mode does not run despite the fact that there is quite a bit frost on the outdoor unit
- The HVAC system could not work for the fact of the safety issue that the frost poses
- The control board may signify an error number referring to the failed defrost sequence
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