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International Comfort Products PGF036K080F Limit Switch
Limit switches are built because if the air is too cool inside the furnace to begin with, the you will lose all the heat as the air flows through the ducts. A normal limit switch contains a sensor located in the furnace that makes the determination when the air is warmed to a point that it can be circulated throughout the house.
Major signs of a worsening main limit switch
- The International Comfort Products system is beginning to erratically on a regular basis
- The HVAC system will not begin the ignition sequence or run for any length of time
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