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International Comfort Products GPSM60L100F Limit Switch
A limit switch was crafted because if the air is not warm enough the you will lose heat in the ducts and the vents will just blow cool air. The limit switch has a sensor located in the furnace that makes the determination when the air is warm enough that it can be circulated throughout the house.
Symptoms of a worsening main limit switch
- The International Comfort Products system is starting to run erratically on more than one occasion
- The HVAC system will not initiate or run well longer than a minute
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