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International Comfort Products PHF030K000A Thermistor
In an HVAC system, a thermistor is a certain type of resistor which has a resistance that changes as it depends on the amount of, or lack thereof, heat. The main control board needs to know the temperature in certain areas to ensure that things are as they should be. They can tell the circuit board when a certain temperature in increasing or decreasing.
Subtle cues of an ailing system thermister
- The heating and cooling system may not function because of the damaged thermistor
- The blower could fail to begin to get up to full speed
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