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Bard part number S8105-057-0108 is an OEM programmed motor service assembly used in select Bard wall mounted HVAC equipment where the motor speed and airflow control depend on factory programming. When a programmed motor fails, symptoms often include intermittent blower operation, incorrect airflow, nuisance lockouts, or poor comfort, and replacing it with the correct pre-programmed Bard motor helps restore normal startup, ramping, and steady airflow operation. Because programmed motors are application-specific, match this part number to the unit model and serial or the Bard service literature before ordering to ensure proper plug compatibility and control performance.