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International Comfort Products T8MPL075B12B1 Limit Switch
Limit switches were created because if the air is too cool inside the furnace to begin with, then the house will never get warm enough. A normal limit switch has a sensor in the heating area that determines when the air is actually warm enough to activate the main blower.
Signals of an unhealthy main limit switch
- The heating and cooling system will not even start or run like it is supposed to
- The system is beginning to go through the startup sequence but stops quickly occasionally
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