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International Comfort Products H9MPD075F12B1 Limit Switch
The limit switch contains a sensor in the heating area that makes the determination when the heated air is warm enough for the main blower to kick in and circulate the air. One big reason why limit switches are designed that way is because if the warmed air is too cool then the house will never get warm enough.
Clues to watch for to know limit switch will need replacing
- Your International Comfort Products system will not begin nor will it stay running longer than 10 minutes
- Your system begins to initiate and then stops on more than one occasion
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