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Carrier 30HR Limit Switch
The limit switch has a sensor in the heat exchanger that determines when the heated air is actually warm enough for the blower to be activated. One big reason why limit switches are designed that way is due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts.
What red flags are there that my critical limit switch is about to go out?
- The heating and cooling system is unable to start nor will it stay running as it should
- The whole system is starting to become inconsistent on a regular basis
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Before you decide on buying or ordering any Carrier 30HR part do your best and double check the model number as well as make a visual inspection so that you are positive that the right limit switch is being ordered. Replacing the limit switch is a breeze if you energy and have the tools to get it done.
Feel free to download your manual for help.
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