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International Comfort Products T9MPV050F12A1 Thermistor
In an HVAC system, a thermistor is a certain type of resistor that has a fluctuating resistance that is contingent on the thermal temperature. The heating system reads the temperature throughout the whole system to do its job correctly. They notify the system when the temperature reaches a certain point.
Indications your all-important thermister has very little life left
- Blower fan may refuse to begin to engage full speed
- The initial sequence may not operate due to a thermistor that has failed
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