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International Comfort Products HHP018GKA1 Thermistor
In an HVAC system, a thermistor is a certain type of resistor that has a fluctuating resistance that changes as it depends on thermal temperature. The main control board deciphers the temp in several different areas to make a decision on what needs to be done. They convey to the circuit board when the temperature has been reached.
Major indications the temp-regulating thermister will not live much longer
- The AC and heat system may never begin due to any one thermistor that is damaged
- The main fan may fail in the attempt to begin full speed blowing
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