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International Comfort Products PA5530AKA2 Thermistor
A very basic thermistor is a type of resistor whose rated resistance is dependent on the temperature at its location. They can tell the circuit board when a temperature has been reached. The system control board interprets the temperature in several different areas to understand what is going on.
How do you know if your system thermister really needs to be replaced?
- The blower could fail to begin to engage full speed spinning
- The initial sequence may never begin due to any one thermistor that is damaged
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