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Mitsubishi MSH-12NV Thermistor
In an HVAC system, a thermistor is a thermal resistor, that has a varied resistance that varies depending on the amount of, or lack thereof, heat. They tell the circuit board when a temperature reaches a certain point. The control board deciphers the temp in certain areas to ensure that things are as they should be.
Warnings the temp-regulating thermister is dead
- The system may not even begin to function due to any one improperly set thermistor
- The main fan refuses to begin to engage full speed spinning
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