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Bryant 348 Thermistor
A thermistor is a specific kind of resistor that has a swinging resistance will fluctuate depending on the temperature. The control board interprets the temperature in some specific areas of the system to be sure everything is going well. They tell the HVAC system when the temperature has been reached.
Symptoms of a weak system thermister
- Blower fan could never begin to begin to ramp up to full speed
- The whole system may not initiate the starting sequence because of the thermistor that is the problematic one
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Before you decide on buying or ordering a new Bryant 348 replacement part do your best and cross-check the correct model as well as make a visual inspection in order to be sure the right thermistor is the one being purchased. You do not have to install the replacement part alone. Find a professional in your area to pay to install it for you.
Feel free to download your manual for help.
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