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International Comfort Products C9MPD125L20C2 Limit Switch
The limit switch is a type of sensor switch in the heating area that determines if and when the air is warm enough for the blower to be activated. Limit switches were created due to the fact that if the air inside the furnace is too cool then the house will never get warm enough.
Major symptoms of a poorly working critical limit switch
- The HVAC system will not initiate or will not stay running as it should
- The system is starting to go through the startup sequence but stops quickly time after time
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