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EdgeStar AP12000S Limit Switch
A normal limit switch is a switch in the air handler that senses, or governs, when the heated air is actually warm enough for the main blower to kick in and circulate the air. Limit switches are built due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air.
Simple signals critical limit switch will need replacing
- The system starts to runs uneven more often than not
- The heating and cooling system is unable to start or will not stay running like it should
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