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International Comfort Products GPSM36L080F Limit Switch
Limit switches are built because if the air never warms up then you will never get hot air through the ducts. The limit switch has a sensor located in the furnace that can determine when the heated air is warmed to a point for the air to begin normal home circulation.
Elements to watch for in a failing critical limit switch
- The HVAC system is starting to runs spotty more often than not
- The heating and cooling system will not initiate or will not stay running longer than 10 minutes
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