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SPT WA-1220M Limit Switch
Limit switches were created due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts. The limit switch is a switch in the heat exchanger that determines when the air is warm enough for the main blower to kick in and circulate the air.
What are the clues to watch out for to know my limit switch is not working properly?
- The system is beginning to act weird more than once
- The HVAC system refuses to kick in or will not stay running like it ought to
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If you are going to be buying or purchasing a replacement limit switch for your SPT WA-1220M do your best and double check 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. You do not have to install the replacement part alone. Pay a professional in your area to replace the part.
Feel free to download your manual for help.
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