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Haier HC42D2VAR Limit Switch
One big reason why limit switches are designed that way is because if the air is too cool inside the furnace to begin with, then the house will never get warm enough. The limit switch contains a sensor in the air handler that makes the determination when the heated air is actually warm enough for the main blower to kick in and circulate the air.
Major indications to watch for in a failing main limit switch
- The Haier system is beginning to run erratically occasionally
- Your Haier system will not even start nor will it stay running longer than a minute
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Before buying or ordering any Haier HC42D2VAR replacement part, do your due diligence and make sure of the model number and also make a visual comparison so that you are positive that the proper replacement limit switch is the one being purchased. You do not need to replace the part all by yourself. Hire a pro locally to pay to install it for you.
Feel free to download your manual for help.
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