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Carrier 48XPN030040300 Limit Switch
A normal limit switch contains a sensor in the heat exchanger that can determine when the air is warm enough for the air to begin normal home circulation. The main reason limit switches are made is due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air.
What warnings should I watch out for to know if my limit switch is dying?
- The Carrier system starts to act weird occasionally
- System is unable to start or run well like it ought to
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If you are going to be buying or ordering, do your due diligence and double check the correct model as well as make a visual comparison in order to be sure the correct replacement limit switch is being ordered. Replacing a new limit switch is not difficult if you have the time and have the tools to do it right.
Feel free to download your manual for help.
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