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Bryant 373LAV Limit Switch
The limit switch contains a sensor in the air handler that can determine when the heated air is warmed to a point to activate the main blower. One big reason why limit switches are designed that way is because if the air is too cool inside the furnace to begin with, the you will lose all the heat as the air flows through the ducts.
Symptoms limit type switch will have to be replaced
- Your system starts to run erratically repeatedly
- The heating and cooling system will not begin the ignition sequence or will not stay running longer than 30 seconds
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If you decide on picking up or ordering a new Bryant 373LAV replacement part, do your due diligence and cross-check the model number and also make a visual inspection so that you are positive that the correct limit switch is the one being purchased. There is no need to install the part by yourself. Look for a professional in your community to do the job for you.
Feel free to download your manual for help.
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