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International Comfort Products GPFM60S140E Limit Switch
A normal limit switch has a sensor in the heating area that determines when the heated air is actually warm enough that it can be circulated throughout the house. A limit switch was crafted because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.
General warnings of a weak limit switch
- Your International Comfort Products system refuses to kick in or will not stay running longer than 30 seconds
- The HVAC system starts to behave differently frequently
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