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International Comfort Products PGMD42G115 Limit Switch
The limit switch has a sensor in the heat exchanger that senses, or governs, if and when the air is actually warm enough to activate the main blower. A limit switch was crafted because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.
What are the indications that my limit switch most likely is in need of a replacement?
- The system begins to become inconsistent from time to time
- The heating and cooling system will not initiate nor will it stay running for any length of time
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Before you decide on buying or ordering, do your due diligence and cross-check 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. The installing of the limit switch is not difficult if you possess the knowledge and have the proper tools to get it done.
Feel free to download your manual for help.
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