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Bard part number 8201-046 is an OEM blower relay used in Bard wall mounted package units to switch the indoor blower circuit on a call for fan or heating and cooling operation. When a relay is weak or has burned contacts, you can see intermittent blower operation, delayed starts, or nuisance cycling, and replacing the relay helps restore reliable airflow and proper sequence of operation. This Bard relay is built to the electrical and fit requirements of the original control design, so it is the correct choice when you need a direct replacement that matches the unit wiring and mounting without field modifications. Confirm compatibility by matching the part number and relay markings to your unit model and wiring diagram before ordering.