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Carrier 38EYG048 Limit Switch
Limit switches exist because if the warmed air is too cool the you will lose all the heat as the air flows through the ducts. The limit switch is a switch located in the furnace that determines when the heated air is warmed to a point for the blower to be activated.
Simple indications of a worsening main limit switch
- Your Carrier system is unable to start or continue to run as it should
- The Carrier system begins to become unpredictable on more than one occasion
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