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International Comfort Products PGC018K040A Thermistor
A thermistor is a type of resistor that has a fluctuating resistance that is governed by heat. They can tell the system control board when a certain temperature has been reached. The system needs to know the temperature in certain areas to ensure that things are as they should be.
Simple indications to watch for in a failing system thermister
- Blower fan could possibly fail to begin to ramp up to full speed
- The AC and heat system could never start up due to any one damaged thermistor
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