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Carrier 38HDR018 Limit Switch
The reason limit switches exist is because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts. A normal limit switch contains a sensor in the heat exchanger that can determine when the heated air is warm enough for the air to begin normal home circulation.
Important hints main limit switch needs replacing ASAP
- System will not start or will not stay running longer than 10 minutes
- The HVAC system is starting to ramp up but then stops often
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Before you decide on buying or purchasing a new Carrier 38HDR018 replacement part do your best and make sure of the correct model and also make a visual inspection so that you are positive that the proper replacement limit switch is being ordered. There is no rule that says you have to install the part by yourself. Hire a pro in your area to hire and install the part for you.
Feel free to download your manual for help.
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