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Lennox CBX27UH-042 Thermistor
A thermistor is a thermal resistor, that has a fluctuating resistance that is governed by heat. The main control board takes the temperature throughout the whole system to make a decision on what needs to be done. They convey to the system control board when a temperature in increasing or decreasing.
Major indications your all-important thermister has little life left
- Blower motor could never begin in its attempt to ramp up to full speed
- The AC and heat system could possibly never start due to any one improperly set thermistor
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If you decide on picking up or ordering 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 the one being purchased. There is no rule that says you have to replace the part all by yourself. Pay a professional in your town or city to do the job for you.
Feel free to download your manual for help.
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