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International Comfort Products N9MP2080F16C1 Limit Switch
A normal limit switch has a sensor in the heating area that senses, or governs, if and when the air is warm enough so that it may be pushed through the ducts and out the vents. Limit switches are built 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.
Some warnings critical limit switch is dead
- The system is starting to runs uneven on more than one occasion
- The heating and cooling system will not begin the ignition sequence or run well like it ought to
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