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International Comfort Products CAC036AKA1 Limit Switch
This is important due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts. A normal limit switch is a type of sensor switch located in the furnace that makes the determination if and when the air is warmed to a point for the main blower to kick in and circulate the air.
Symptoms of a weakening main limit switch
- Your system is starting to act differently frequently
- The heating and cooling system will not begin or run longer that five minutes
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