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Carrier FV4BNF005000 Limit Switch
This is important due to the fact that if the air never warms up inside the exchanger the you will lose heat in the ducts and the vents will just blow cool air. The limit switch is a switch in the air handler that senses, or governs, when the heated air is actually warm enough that it can be circulated throughout the house.
Red flags limit switch will need to be replaced
- The Carrier system begins to run inconsistently repeatedly
- The heating and AC system will not even start nor will it stay running as it should
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If you are going to be buying or purchasing, do your due diligence and make sure of the correct model as well as make a visual inspection in order to be sure the correct replacement limit switch is being ordered. You do not need to replace the part all by yourself. Hire a pro in your community to pay to install it for you.
Feel free to download your manual for help.
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