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Lennox HPXB15-036 Thermistor
A very basic thermistor is a specific kind of resistor that has a fluctuating resistance that will fluctuate depending on the current temperature. The control board needs to know the temperature in several different areas to do its job correctly. They inform the system control board when a temperature reaches a certain point.
Some warnings of a defective temp regulating thermister
- The system may never begin due to a damaged thermistor
- The main fan could fail in the attempt to ramp up the airflow
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