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International Comfort Products N9MP2075B12A2 Limit Switch
The limit switch has a sensor in the air handler that decides if and when the air is warmed to a point that it can be circulated throughout the house. Limit switches are built because if the air is too cool inside the furnace to begin with, the you will lose heat in the ducts and the vents will just blow cool air.
Major warnings limit switch has little life left
- System refuses to kick in or run well like it should
- Your system is beginning to initiate and then stops occasionally
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