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Bard part number S8106-052-0051 is an OEM programmed service motor used in select Bard wall mounted HVAC units where the motor speed and airflow are controlled by a factory programmed module. When a programmed motor fails, symptoms often include intermittent operation, improper airflow, nuisance safeties, or poor cooling and heating performance, so replacing it with the correct pre-programmed Bard motor helps restore proper blower or fan operation without field programming. Because this is a control matched motor assembly, confirm your unit model and serial number and verify wiring connections and mounting match the original before installation to ensure proper rotation, airflow, and system reliability.