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Lennox HPXB15-060 Thermistor
A very basic thermistor is a specific kind of resistor that has a swinging resistance is directly proportioned to heat. The system control board reads the temperature in some specific areas of the system to make a decision on what needs to be done. They can tell the circuit board when the temperature in increasing or decreasing.
Some warnings the temp-regulating thermister should need replacing
- The system blower refuses in its attempt to engage full speed
- The system may not even begin to function due to any one damaged thermistor
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