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Carrier FF1DNA030075AAAA Limit Switch
Limit switches are crucial because if the warmed air is too cool then the house will never get warm enough. A normal limit switch contains a sensor located in the furnace that determines when the air is actually warm enough for the main blower to kick in and circulate the air.
Symptoms of a barely functioning main limit switch
- The heating and AC system refuses to kick in nor will it stay running even though max temp has not been reached
- Your system is starting to go through the startup sequence but stops quickly time after time
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Before you decide on buying or ordering any Carrier FF1DNA030075AAAA part, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the proper replacement limit switch is being ordered. Some pros can be expensive so you could call around to acquire the best rate if money is a concern.
Feel free to download your manual for help.
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