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Lennox XP13-060 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor whose rated resistance is directly proportioned to temperature at its location. They notify the main board when a temperature has been reached. The system needs to know the temperature throughout the whole system to know what to do next.
What are the clues to watch out for to know my thermister has to be replaced?
- The heating and AC system may never begin due to a problematic thermistor
- Main blower could never begin in the attempt to engage full speed
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