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International Comfort Products T9MPD125L20C1 Thermistor
In an HVAC system, a thermistor is a certain type of resistor whose rated resistance is dependent on the actual temperature is perceives. The main control board deciphers the temp in some specific areas of the system to know what to do next. They tell the main board when a temperature has been reached.
How do you know if your system thermister is almost going bad?
- Blower fan fails in its attempt to engage full speed
- The whole HVAC system may not initiate the starting sequence because of the thermistor that is malfunctioning
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