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Carrier 50GS036300 Limit Switch
Limit switches are crucial because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts. A normal limit switch has a sensor in the heating area that determines if and when the air is warmed to a point to activate the main blower.
Subtle cues of an ailing limit switch
- The heating and AC system is unable to start or will not stay running longer that five minutes
- The HVAC system starts to initiate and then stops often
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