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International Comfort Products PGME42G0904 Thermistor
In an HVAC system, a thermistor is a certain type of resistor that has a swinging resistance will fluctuate depending on the current temperature. They notify the main board when a certain temperature has been reached. The furnace or AC interprets the temperature in order to ensure that things are as they should be.
Hints your all-important thermister is in dire need of a replacement
- The initial sequence may never start up depending on which is the failed thermistor
- The system blower could fail to begin to engage full speed
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