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International Comfort Products PGMD30G0604 Thermistor
A very basic thermistor is a thermal resistor, that has a varied resistance that is directly proportioned to temperature at its location. They notify the system when a temperature reaches a certain point. The system control board needs to know the temperature in order to do its job as it should.
Important hints your thermister is in need of replacing
- The heating and AC system may never begin due to a thermistor that is stuck open
- Blower fan refuses to begin to begin full speed blowing
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