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International Comfort Products PGMD42H115C Limit Switch
A normal limit switch is a type of sensor switch in the heat exchanger that decides when the heated air is warm enough to activate the main blower. One big reason why limit switches are designed that way is because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air.
Simple indications of a weak critical limit switch
- The International Comfort Products system begins to become inconsistent on a regular basis
- System is unable to start or will not stay running longer than 30 seconds
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Before buying or ordering, do your due diligence and cross-check the model number and also make a visual comparison so that you are positive that the correct replacement limit switch is the one being purchased. If you are not sure about installing the new limit switch on your own then it would be in your best interest to find a professional in your area to do the replacement of the part.
Feel free to download your manual for help.
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