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International Comfort Products T9MPX080J16A2 Thermistor
A very basic thermistor is a specific kind of resistor whose resistance is altered by temperature at its location. They tell the HVAC system when the temperature reaches a certain point. The furnace or AC must know the temp in a few critical areas to make a decision on what needs to be done.
Key symptoms of a poorly working system thermister
- Blower fan refuses to begin to engage full speed
- The whole system may not initiate the starting sequence depending on which is the failed thermistor
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