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International Comfort Products PGAA42C1K1 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor that has a swinging resistance is directly proportioned to heat. They tell the main board when the temperature has been reached. The system reads the temperature in some specific areas of the system to do its job correctly.
How can I tell if my system thermister is about to stop working?
- The heating and AC system may never begin because of any thermistor that has failed
- The blower may refuse in the attempt to get up to full speed
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