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International Comfort Products NHP218GKA1 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor whose rated resistance depends on the actual temperature is perceives. The heating system needs to know the temperature in certain areas to be sure everything is going well. They inform the circuit board when a temperature in increasing or decreasing.
Warnings of a weakening thermister
- The entire system may never start up because of the thermistor that is stuck open
- Blower motor could possibly fail to begin to get up to full speed
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