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International Comfort Products HAC436AKA1 Limit Switch
A normal limit switch is a type of sensor switch located in the furnace that makes the determination when the heated air is warm enough that it can be circulated throughout the house. A limit switch was crafted because if the warmed air is too cool then you will never get hot air through the ducts.
Subtle cues of a defective critical limit switch
- The HVAC system will not begin or run well like it ought to
- The system starts to behave differently more than once
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