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International Comfort Products NTG3125KJA1 Limit Switch
The limit switch has a sensor in the heating area that senses, or governs, when the heated air is warm enough for the air to begin normal home circulation. Limit switches were created due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts.
Major warnings of a defective limit switch
- The HVAC system will not start or will not stay running longer that five minutes
- The whole system starts to behave differently frequently
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