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International Comfort Products N2A348GKA200 Limit Switch
The limit switch is a type of sensor switch in the heating area that makes the determination when the air is actually warm enough so that it may be pushed through the ducts and out the vents. The reason limit switches exist is because if the warmed air is too cool the you will lose all the heat as the air flows through the ducts.
Clues to watch for to know main limit switch is in need of replacing
- The heating and cooling system will not begin or run like it is supposed to
- The whole system is starting to behave differently repeatedly
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