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International Comfort Products C8DNL075B12B1 Limit Switch
Limit switches exist because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts. The limit switch is a switch located in the furnace that can determine when the heated air is actually warm enough that it can be circulated throughout the house.
Key clues of a declining limit type switch
- The whole system is starting to act weird often
- System refuses to start or run even though the desired temperature has not been attained
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