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Haier CPN12XC9 Thermistor
In an HVAC system, a thermistor is a certain type of resistor that has a swinging resistance is solely dependent on temperature at its location. The system must know the temp throughout the whole system to make sure everything is running smoothly. They inform the main board when the temperature reaches a certain point.
How do you know when your Haier thermister really needs to be replaced?
- The blower may fail in its attempt to ramp up the airflow
- The heating and AC system may never start up due to a improperly set thermistor
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