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International Comfort Products PGF048H120F Limit Switch
A normal limit switch is a switch located in the furnace that senses, or governs, if and when the air is actually warm enough that it can be circulated throughout the house. The reason limit switches exist is due to the fact that if the air never warms up inside the exchanger the you will lose heat in the ducts and the vents will just blow cool air.
What to see if the chief limit switch is almost dead?
- Your International Comfort Products system will not even start or will not stay running even though the desired temperature has not been attained
- The system is starting to become unpredictable on more than one occasion
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