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Carrier 50TC-A04 Defrost Sensor Board
The defrost sensor control board will determine when to initiate the defrosting phase which actually helps to continue normal heating and cooling operations. It is relayed information from a specific sensor located somewhere by the condenser to decide when to begin.
Hints your defrost board is on its last leg
- The HVAC system could stop operating because of too much frost
- The HVAC system control board may signify a type of error code produced by a failing defrost board
- Defrost mode does not begin even though there is quite a bit frost that makes the unit run like crap
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