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SPT WA-1420E Limit Switch
The limit switch has a sensor in the heating area that makes the determination when the heated air is actually warm enough to activate the main blower. Limit switches are crucial due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts.
What red flags are there that my main limit switch is dying?
- The whole system starts to become inconsistent more often than not
- The HVAC system will not begin the ignition sequence nor will it stay running for any length of time
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If you decide on picking up or purchasing a new SPT WA-1420E replacement part do your best and double check the correct model and also make a visual comparison so that you are positive that the correct replacement limit switch is the one being purchased. The installing of the limit switch is not difficult if you possess the knowledge and have the proper tools to get it done.
Feel free to download your manual for help.
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