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SPT WA-8070E Limit Switch
A limit switch was crafted because if the air is not warm enough the you will lose heat in the ducts and the vents will just blow cool air. A normal limit switch contains a sensor in the air handler that can determine when the air is warm enough for the blower to be activated.
What are the indications that my limit switch most likely is not working properly?
- System will not begin the ignition sequence or will not stay running longer than a minute
- The whole system starts to behave differently often
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