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International Comfort Products CAC442GKA1 Limit Switch
Limit switches exist because if the air is too cool inside the furnace to begin with, then the house will never get warm enough. The limit switch has a sensor in the air handler that decides when the heated air is actually warm enough to activate the main blower.
Important signs limit switch is failing
- The International Comfort Products system starts to erratically from time to time
- System will not begin the ignition sequence or continue to run as it should
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