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International Comfort Products PGF018K040F Limit Switch
This is important because if the air is not warm enough the you will lose all the heat as the air flows through the ducts. A normal limit switch is a switch in the heat exchanger that determines when the heated air is actually warm enough so that it may be pushed through the ducts and out the vents.
What signals that my chief limit switch is not working right?
- The heating and cooling system refuses to kick in or will not stay running even though the desired temperature has not been attained
- The system is beginning to act differently on more than one occasion
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