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Carrier ZW Limit Switch
Limit switches are crucial because if the warmed air is too cool the you will lose all the heat as the air flows through the ducts. A normal limit switch contains a sensor located in the furnace that can determine if and when the air is warmed to a point for the air to begin normal home circulation.
How can I tell if my limit switch is failing?
- The Carrier system starts to go through the startup sequence but stops quickly often
- The heating and cooling system refuses to start or continue to run for any length of time
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Before buying or ordering do your best and make sure of the model number and also make a visual comparison in order to be sure the proper replacement limit switch is being ordered. Replacing the limit switch is not difficult provided you possess the knowledge and have the tools to do it right.
Feel free to download your manual for help.
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