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Carrier FX4BNF018000AAAA Limit Switch
This is important because if the air is not warm enough then you will never get hot air through the ducts. A normal limit switch has a sensor located in the furnace that can determine when the air is actually warm enough to activate the main blower.
What to see if the critical limit switch needs replacing?
- The heating and AC system refuses to start or run longer that five minutes
- The Carrier system begins to act differently often
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Before buying or purchasing a new Carrier FX4BNF018000AAAA replacement part do your best and double check the correct model and also make a visual inspection so that you are positive that the right limit switch is the one being purchased. HVAC professionals can be expensive so you may want to ask around to find a good deal if you do not want to pay too much.
Feel free to download your manual for help.
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