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Payne PH3ZNA036000AA Limit Switch
A normal limit switch is a type of sensor switch in the heat exchanger that can determine when the air is warm enough for the air to begin normal home circulation. Limit switches are built due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts.
Important signs main limit switch is not going to last much longer
- Your system is starting to go through the startup sequence but stops quickly occasionally
- The heating and cooling system will not begin the ignition sequence or run even though max temp has not been reached
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Before you decide on buying or ordering any Payne PH3ZNA036000AA part, do your due diligence and double check the model number and also make a visual comparison in order to be sure the correct limit switch is the one being purchased. If you are not sure about the installation of the new limit switch on your own then it may be wise to find a professional in your area to do the work for you.
Feel free to download your manual for help.
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