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Carrier 38TPA048 Thermistor
In an HVAC system, a thermistor is a type of resistor that has a fluctuating resistance that is solely dependent on current temperature. They inform the system when a temperature reaches a certain point. The main control board reads the temperature in certain areas to be sure everything is going well.
General warnings of a poorly working system thermister
- The main blower may refuse in the attempt to ramp up
- The initial sequence could possibly not even begin because of any problematic thermistor
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