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International Comfort Products CHP448AKA1 Thermistor
A very basic thermistor is a thermal resistor, whose resistance depends on the current temperature. The control board takes the temperature in a few critical areas to make sure everything is running smoothly. They inform the circuit board when the temperature has been reached.
What to see if the main thermister really needs to be replaced?
- The main blower could possibly fail to begin to engage full speed
- No component could possibly not operate because of the problematic thermistor
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