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LG ARNU073SEL2 Thermistor
A thermistor is a certain type of resistor that has a swinging resistance will fluctuate depending on the heat. The furnace or AC reads the temperature throughout the whole system to understand what is going on. They tell the heating and cooling system when a temperature in increasing or decreasing.
Important signs your all-important thermister has very little life left
- The whole HVAC system may never start up because of the stuck thermistor
- The main fan could never begin in its attempt to get up to full speed
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