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International Comfort Products PGME Limit Switch
The limit switch is a switch in the heat exchanger that makes the determination when the air is warm enough for the air to begin normal home circulation. Limit switches were created due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air.
Signs of a poorly working limit switch
- System will not start or run well longer than a minute
- The International Comfort Products system is beginning to behave erratically on more than one occasion
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