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International Comfort Products H8DNL100L20A1 Limit Switch
A normal limit switch is a type of sensor switch located in the furnace that senses, or governs, when the heated air is warmed to a point for the air to begin normal home circulation. This is important because if the air never warms up then the house will never get warm enough.
What warnings are present when my chief limit switch is almost dead?
- The heating and cooling system refuses to start or run like it ought to
- The HVAC system is beginning to act weird often
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