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Carrier 58DLA04510008 Limit Switch
The limit switch has a sensor located in the furnace that determines when the heated air is warm enough for the blower to be activated. Limit switches exist because if the air is too cool inside the furnace to begin with, the you will lose heat in the ducts and the vents will just blow cool air.
Red flags of a deteriorating limit switch
- The whole system begins to run inconsistently repeatedly
- System refuses to start or continue to run for any length of time
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Before buying or purchasing, do your due diligence and double check the model number and also make a visual comparison in order to be sure the proper replacement limit switch is the one being purchased. Use caution when installing or replacing an HVAC part. If you are not exactly sure of what to do next call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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