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International Comfort Products N9MP2075B12C1 Limit Switch
The limit switch has a sensor in the heating area that can determine when the heated air is warm enough so that it may be pushed through the ducts and out the vents. Limit switches exist because if the air is not warm enough the you will lose heat in the ducts and the vents will just blow cool air.
Simple indications of a weak limit type switch
- The International Comfort Products system is beginning to behave erratically often
- System refuses to kick in or continue to run longer that five minutes
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