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Carrier 38TPA042 Thermistor
In an HVAC system, a thermistor is a specific kind of resistor which has a resistance that is dependent on the thermal temperature. They tell the heating and cooling system when a temperature reaches a certain point. The system control board reads the temperature throughout the whole system to ensure that things are as they should be.
Key signs of an inadequate all-important thermister
- Primary blower refuses in the attempt to ramp up
- The heating and cooling system may not even begin to function because of any stuck thermistor
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If you are going to be buying or purchasing, do your due diligence and make sure of the correct model and also make a visual inspection so that you are positive that the correct thermistor is the one being purchased. Use caution when installing or replacing an HVAC part. If you are unsure about the installation then you should call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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