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Goodman GMH80903BN Limit Switch
Limit switches are built due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts. The limit switch contains a sensor in the heat exchanger that decides if and when the air is warmed to a point to activate the main blower.
Clues of a worsening limit switch
- The HVAC system will not start or run longer than a minute
- The system begins to act weird often
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If you decide on picking up or purchasing a new Goodman GMH80903BN replacement part, do your due diligence and make sure of the model number as well as make a visual inspection so that you are positive that the proper replacement limit switch is the one being purchased. There is no rule that says you have to install the part by yourself. Pay a professional in your town or city to replace the part.
Feel free to download your manual for help.
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