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Lennox XP16-048 Thermistor
A very basic thermistor is a thermal resistor, that has a fluctuating resistance that varies depending on the temperature at its location. The HVAC system must know the temp throughout the whole system to ensure that things are as they should be. They inform the main board when a temperature has been reached.
Hints of an unhealthy all-important thermister
- No component could possibly never start because of any inaccurate thermistor
- The main fan could possibly fail in the attempt to get up to full speed
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