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SPT WA-1220E Limit Switch
Limit switches are built due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts. A normal limit switch contains a sensor in the air handler that decides when the heated air is warmed to a point that it can be circulated throughout the house.
Clues of a poorly working main limit switch
- The whole system is beginning to run inconsistently time after time
- The HVAC system will not even start or will not stay running like it ought to
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Before you decide on buying or ordering any SPT WA-1220E replacement part do your best and double check the model number as well as make a visual inspection so that you are positive that the correct limit switch is being ordered. There is no need to install the replacement part alone. Hire a pro in your area to do the job for you.
Feel free to download your manual for help.
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