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Lennox RL-45 Thermistor
In an HVAC system, a thermistor is a certain type of resistor that has a swinging resistance is governed by current temperature. The system control board must know the temp throughout the whole system to ensure that things are as they should be. They inform the main board when a temperature reaches a certain point.
Key signs of a failing temp regulating thermister
- The AC and heat system could possibly not even begin due to any one failed thermistor
- Primary blower may refuse in the attempt to engage full speed
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If you decide on picking up or purchasing a new Lennox RL-45 replacement part, do your due diligence and cross-check the model number and also make a visual comparison in order to be sure the proper replacement thermistor is the one being purchased. There is no need to install the part by yourself. Consult with a professional in your town or city to replace the part.
Feel free to download your manual for help.
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