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Lennox CB30U-41 Thermistor
In an HVAC system, a thermistor is a special kind of new age resistor whose rated resistance changes as it depends on temperature at its location. They inform the system control board when a temperature has been reached. The furnace or AC reads the temperature in order to ensure that things are as they should be.
Simple warnings that your temp regulating thermister is almost going bad?
- The initial sequence could possibly not operate due to a improperly set thermistor
- Primary blower may fail to begin to get up to full speed
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If you are going to be buying or ordering, do your due diligence and double check the model number and also make a visual inspection so that you are positive that the correct thermistor is being ordered. There is no rule that says you have to install the replacement part alone. Locate a pro in your area to pay to install it for you.
Feel free to download your manual for help.
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