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Carrier 48GX042090300 Thermistor
A thermistor is a certain type of resistor that has a swinging resistance changes as it depends on thermal temperature. They notify the HVAC system when a certain temperature reaches a certain point. The HVAC system takes the temperature in several different areas to ensure that things are as they should be.
Simple signals the Carrier thermister needs replacing
- Primary blower may refuse in its attempt to ramp up the airflow
- The initial sequence could possibly not even begin because of the bad thermistor
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If you are going to be buying or purchasing do your best and double check the model number as well as make a visual inspection in order to be sure the correct thermistor is being ordered. Once you have the part to install it yourself. Look for a professional in your community to replace the part.
Feel free to download your manual for help.
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