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Carrier 48GS042090300 Limit Switch
The limit switch has a sensor located in the furnace that can determine when the heated air is warm enough for the blower to be activated. Limit switches were created due to the fact that if the air never warms up inside the exchanger then the house will never get warm enough.
What to see if the main limit switch is dying?
- System refuses to kick in or will not stay running like it ought to
- Your system is beginning to shut down unexpectedly occasionally
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Before you decide on buying or purchasing a new Carrier 48GS042090300 replacement part do your best and double check the correct model and also make a visual comparison in order to be sure the proper replacement limit switch is being ordered. Installation of the limit switch is a breeze provided you know what you are doing and have the tools to do it right.
Feel free to download your manual for help.
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