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International Comfort Products N9MPD100J14A2 Defrost Sensor Board
The defrost control board is jobbed with determining when to begin the defrosting phase in order to continue normal heating and cooling operations. The board relies on a sensor located near the condenser to ascertain when to begin.
What are the indications that my defrost board is almost going bad?
- The system may cease to operate due in part to frost blocking the airflow outside
- The defrost sequence does not run even when there is a large quantity of frost that has built up
- The HVAC system control board could throw a type of error code when the defrost control board refuses to initialize properly
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