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International Comfort Products NDN6125KJA1 Limit Switch
A normal limit switch is a switch in the air handler that can determine when the heated air is actually warm enough so that it may be pushed through the ducts and out the vents. Limit switches exist 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.
What symptoms are present when the limit switch most likely is in need of replacing?
- The heating and cooling system will not start nor will it stay running for any length of time
- Your system is starting to run inconsistently on a regular basis
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