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International Comfort Products N9MP1080F16A2 Limit Switch
One big reason why limit switches are designed that way 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. A normal limit switch is a switch located in the furnace that makes the determination when the heated air is warm enough so that it may be pushed through the ducts and out the vents.
Cues of a laboring limit type switch
- System is unable to start nor will it stay running like it should
- The whole system is starting to run erratically more often than not
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