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Samsung AVMBH040CA0 Limit Switch
The limit switch is a type of sensor switch in the heat exchanger that decides when the heated air is warmed to a point that it can be circulated throughout the house. Limit switches exist due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts.
Signs limit switch is dead
- The heating and AC system will not even start or run well longer than 10 minutes
- The system begins to initiate and then stops on more than one occasion
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