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International Comfort Products PH5530AKA2 Limit Switch
The limit switch contains a sensor in the heat exchanger that decides if and when the air is warm enough for the blower to be activated. Limit switches exist because if the warmed air is too cool then you will never get hot air through the ducts.
How do you know when your critical limit switch is in need of a replacement?
- System will not start or continue to run longer than a minute
- The system is starting to become inconsistent on more than one occasion
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Before buying or ordering, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the proper replacement limit switch is the one being purchased. There is no need to install it yourself. Pay a professional locally to replace the part.
Feel free to download your manual for help.
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