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International Comfort Products H9MPD075F12C2 Limit Switch
Limit switches were created because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts. The limit switch has a sensor in the air handler that senses, or governs, when the heated air is warmed to a point for the blower to be activated.
What warnings are present when my main limit switch is failing?
- The International Comfort Products system begins to behave differently on more than one occasion
- The heating and AC system refuses to kick in or will not stay running longer than 30 seconds
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