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Carrier 58STA090 Defrost Sensor Board
The defrost control board controls when to launch the defrost cycle which aids to defrost your outdoor unit. It is relayed information from a defrost sensor located somewhere by the condenser to decide when to initiate the defrosting cycle.
What symptoms are present when the Carrier defrost sensor board needs replacing?
- Unit defrost session never begins even though there is excessive frost built up
- Your main control board may throw an error signal when the defrost board fails
- Your system could stop functioning due to too much frost
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