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Samsung AVMKH020EA0 Thermistor
In an HVAC system, a thermistor is a special kind of new age resistor that has a fluctuating resistance that is governed by thermal temperature. The furnace or AC deciphers the temp in a few critical areas to be sure everything is going well. They inform the circuit board when a certain temperature in increasing or decreasing.
How do you know if your all-important thermister is almost going bad?
- The system blower fails in its attempt to ramp up to full speed
- The entire system may not function due to any one thermistor that has failed
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