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HOME > HVAC > CARRIER > 50JS030300 > THERMISTOR

Carrier 50JS030300 Thermistor

A very basic thermistor is a certain type of resistor which has a resistance that is directly proportioned to current temperature. They can tell the HVAC system when a temperature reaches a certain point. The system control board deciphers the temp in certain areas to do its job correctly.

Major clues to watch for in a failing temp regulating thermister

Blower motor fails in its attempt to begin full speed blowing
The entire system may never begin due to a thermistor that is stuck open

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Check eBay to see if your thermistor is in stock!

If you are going to be buying or purchasing a replacement thermistor for your Carrier 50JS030300 do your best and double check the correct model as well as make a visual inspection so that you are positive that the correct thermistor is the one being purchased. You do not need to replace the part all by yourself. Hire someone with experience locally to do it for you.

Feel free to download your manual for help.

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Check eBay for your thermistor!