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Lennox 13ACD-030 Thermistor
A very basic thermistor is a certain type of resistor which has a resistance that varies depending on the thermal temperature. The control board takes the temperature in order to do its job correctly. They tell the circuit board when a certain temperature reaches a certain point.
Warnings of a failing system thermister
- The initial sequence may not function because of any damaged thermistor
- The system blower could refuse to begin to ramp up to full speed
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