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Lochinvar KBN105 low/high fan lockout

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Dave_132
Dave_132 Member Posts: 65
in THE MAIN WALL
What are the possibilities besides replacing the blower fan assembly that could cause this error code ? I would prefer to exhaust all other remedies before buying a fan and then finding out that the problem was misdiagnosed. I have not been to the job site and the customer stated that there has never been any maintenance performed since it was installed in 2008.

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  • Burnertech
    Burnertech Member Posts: 6
    Fan issues

    First thing, clean the fan. You may as well do an entire service if it has been in for a long time and never touched. If the issue persists you should check the speed control signals from the board.

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