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Trane TTX048D100A0 Limit Switch
This is important because if the warmed air is too cool then you will never get hot air through the ducts. The limit switch has a sensor located in the furnace that can determine when the air is actually warm enough to activate the main blower.
Elements of an unhealthy main limit switch
- The system is starting to ramp up but then stops on more than one occasion
- System will not initiate or run for any length of time
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If you decide on picking up or ordering do your best and cross-check the correct model and also make a visual inspection in order to be sure the proper replacement limit switch is being ordered. There is no need to install the part by yourself. Find a professional in your area to do it for you.
Feel free to download your manual for help.
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