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Carrier 50JS018300 Limit Switch
The limit switch is a switch in the heat exchanger that determines if and when the air is warmed to a point so that it may be pushed through the ducts and out the vents. Limit switches are crucial due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts.
Key indicators that my limit type switch really is dying?
- The whole system is beginning to go through the startup sequence but stops quickly occasionally
- System will not begin nor will it stay running longer than 10 minutes
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Before buying or purchasing a new Carrier 50JS018300 replacement part do your best and cross-check the model number and also make a visual inspection in order to be sure the proper replacement limit switch is the one being purchased. There is no rule that says you have to install it yourself. Hire a pro in your area to do it for you.
Feel free to download your manual for help.
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