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SPT WA-1010H 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 you will never get hot air through the ducts. The limit switch contains a sensor located in the furnace that decides when the heated air is warm enough that it can be circulated throughout the house.
Easy warnings limit switch should be replaced
- Your system begins to runs spotty more than once
- The heating and cooling system will not even start or continue to run longer than 30 seconds
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If you are going to be buying or purchasing any SPT WA-1010H part do your best and make sure of the correct model 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 rule that says you have to install it yourself. Find a professional in your area to pay to install it for you.
Feel free to download your manual for help.
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