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Carrier 58DLX13510022 Limit Switch
Limit switches are built due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts. The limit switch is a type of sensor switch in the heating area that can determine if and when the air is warmed to a point for the blower to be activated.
What symptoms are present when the main limit switch needs replacing?
- The system begins to behave erratically on a regular basis
- The heating and AC system refuses to kick in or will not stay running longer than 10 minutes
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