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International Comfort Products HAC060AKA1 Limit Switch
The limit switch has a sensor in the heating area that senses, or governs, if and when the air is warmed to a point to activate the main blower. Limit switches are built because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.
What warnings should I watch out for to know if my critical limit switch has a need to be replaced?
- The heating and AC system will not even start or continue to run longer than 30 seconds
- The system is starting to act differently from time to time
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