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Carrier 40QAC060 Limit Switch
A limit switch was crafted due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts. The limit switch contains a sensor located in the furnace that can determine when the air is warmed to a point for the air to begin normal home circulation.
What happens when my main limit switch is almost going bad?
- The heating and AC system refuses to kick in or run for any significant length if time
- The system is starting to runs uneven on a regular basis
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If you are going to be buying or purchasing do your best and cross-check the model number and also make a visual inspection so that you are positive that the correct replacement limit switch is the one being purchased. You do not need to install the part by yourself. Locate a pro locally to replace the part.
Feel free to download your manual for help.
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