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International Comfort Products C8DNL075F16B1 Limit Switch
A normal limit switch is a type of sensor switch located in the furnace that determines when the air is warm enough to activate the main blower. Limit switches exist 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.
What symptoms are present when the limit switch most likely is dying?
- The HVAC system refuses to start or run like it should
- The HVAC system starts to go through the startup sequence but stops quickly on more than one occasion
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