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Carrier 58STA04510012 Defrost Sensor Board
The defrost control board controls when to launch the defrosting phase which helps to get rid of the frost that collects on the outdoor unit. The control board is influenced by a specific sensor which is near the condenser somewhere, in order to agree when the defrost cycle should begin.
Simple indications of a laboring defrost sensor board
- Your system could end up not running for the fact of the safety issue that the frost poses
- The main circuit board may throw a particular error code produced when the defrost board is bad
- Unit defrost session has not run for a while even though there is excessive frost on the outdoor unit
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