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Carrier 38TZA048 Thermistor
A very basic thermistor is a special kind of new age resistor whose rated resistance depends on the temperature at its location. They inform the circuit board when a certain temperature reaches a certain point. The HVAC system interprets the temperature in several different areas to make sure everything is running smoothly.
Signs your all-important thermister has little life left
- The whole system could possibly not even begin due to a improperly set thermistor
- Primary blower could fail in its attempt to ramp up
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If you are going to be buying or purchasing do your best and double check the correct model and also make a visual comparison so that you are positive that the proper replacement thermistor is being ordered. Some pros could be quite expensive to hire so you may want to ask around to find a good deal if you do not want to pay too much.
Feel free to download your manual for help.
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