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Lennox G40UH-60D-155 Thermistor
A very basic thermistor is a special kind of new age resistor whose rated resistance is altered by temperature at its location. The control board reads the temperature in a few critical areas to be sure everything is going well. They notify the heating and cooling system when a certain temperature in increasing or decreasing.
What warnings are present when my main thermister is almost going bad?
- Blower fan fails to begin to ramp up the airflow
- The entire system may never begin because of any stuck thermistor
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