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International Comfort Products NAC048GKA1 Limit Switch
Limit switches are crucial due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts. The limit switch has a sensor in the heat exchanger that senses, or governs, when the air is warm enough that it can be circulated throughout the house.
Warnings of a bad limit switch
- The whole system starts to go through the startup sequence but stops quickly time after time
- The heating and cooling system will not begin the ignition sequence nor will it stay running like it ought to
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