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Carrier 38YRA036 Limit Switch
The main reason limit switches are made is due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts. A normal limit switch is a type of sensor switch in the heating area that decides when the air is actually warm enough so that it may be pushed through the ducts and out the vents.
Important signs main limit switch should need replacing
- The system is beginning to run erratically often
- The HVAC system will not begin or run well longer that five minutes
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