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Goodman GCH91155DX Thermistor
In an HVAC system, a thermistor is a specific kind of resistor that has a varied resistance that is altered by heat. The furnace or AC reads the temperature throughout the whole system to do its job as it should. They tell the circuit board when a certain temperature has been reached.
What are some hints that my main thermister is about to stop working?
- The initial sequence may never start up due to a thermistor that is stuck open
- The main fan could never begin in the attempt to ramp up the airflow
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Before buying or ordering a new Goodman GCH91155DX replacement part do your best and cross-check the correct model as well as make a visual inspection in order to be sure the correct replacement thermistor is the one being purchased. There is no rule that says you have to replace the part all by yourself. Locate a pro locally to hire and install the part for you.
Feel free to download your manual for help.
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