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Carrier 58MSA120 Thermistor
In an HVAC system, a thermistor is a thermal resistor, whose rated resistance is governed by current temperature. The main control board interprets the temperature in certain areas to ensure that things are as they should be. They convey to the circuit board when a temperature has been reached.
Easy warnings the system thermister is in need of replacing
- The whole system may never start up due to any one improperly set thermistor
- The blower could fail to begin to engage full speed spinning
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