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Lennox G43UF-36B-070 Thermistor
A very basic thermistor is a specific kind of resistor that has a varied resistance that is altered by temperature. The HVAC system deciphers the temp in some specific areas of the system to make a decision on what needs to be done. They can tell the HVAC system when the temperature has been reached.
Key indicators that my thermister is on its last leg?
- The main fan refuses in the attempt to ramp up the airflow
- The heating and cooling system may not initiate the starting sequence due to any one bad thermistor
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