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International Comfort Products NDN6075FBG1 Limit Switch
The limit switch contains a sensor in the heat exchanger that determines if and when the air is actually warm enough to activate the main blower. The reason limit switches exist is due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts.
Key indicators that my limit switch most likely is failing?
- Your system is beginning to stop suddenly frequently
- Your International Comfort Products system will not even start or run well longer than 30 seconds
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