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International Comfort Products GDL125N20A3 Limit Switch
The limit switch has a sensor in the heat exchanger that decides when the air is warm enough so that it may be pushed through the ducts and out the vents. 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 heat in the ducts and the vents will just blow cool air.
What are the indications that my limit type switch really is about to go out?
- The HVAC system begins to behave erratically more often than not
- The HVAC system will not initiate or continue to run like it ought to
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