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International Comfort Products PGS036L080F Limit Switch
The limit switch has a sensor located in the furnace that makes the determination when the air is warm enough for the blower to be activated. One big reason why limit switches are designed that way 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.
Major clues limit type switch will need replacing
- The heating and cooling system refuses to start or will not stay running for any length of time
- The International Comfort Products system is starting to stop suddenly on a regular basis
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