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International Comfort Products CAC018AKA1 Limit Switch
The limit switch is a switch located in the furnace that determines if and when the air is actually warm enough for the air to begin normal home circulation. This is important because if the warmed air is too cool then the house will never get warm enough.
General indicators that your critical limit switch has to be replaced
- The heating and cooling system refuses to kick in or run longer than a minute
- The whole system begins to become unpredictable from time to time
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