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Haier CPN12XH9-E Limit Switch
The limit switch has a sensor in the air handler that makes the determination if and when the air is warm enough for the main blower to kick in and circulate the air. A limit switch was crafted because if the air is too cool inside the furnace to begin with, the you will lose heat in the ducts and the vents will just blow cool air.
Indications of a poorly performing critical limit switch
- Your Haier system will not start nor will it stay running like it is supposed to
- The Haier system is starting to run erratically more often than not
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Before buying or purchasing any Haier CPN12XH9-E part, do your due diligence and make sure of the correct model and also make a visual comparison so that you are positive that the correct replacement limit switch is being ordered. You do not have to install it yourself. Hire a pro in your area to do it for you.
Feel free to download your manual for help.
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