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Bard part number 8612-032 is an OEM motor speed control used on Bard wall mounted air conditioners, including W30 and W36 series units, to regulate indoor fan or blower motor speed for proper airflow and stable cooling performance. If your system has erratic fan operation, incorrect airflow, or nuisance shutdowns tied to airflow, replacing the speed control with the correct Bard OEM component helps restore normal fan modulation and protects the compressor by keeping coil temperatures and air delivery within design limits. Match the part number to your unit model and wiring diagram before ordering, since speed controls are application specific by series and control strategy.