The invention relates to a method (10) for operating a compressed air supply device (32) having a first valve unit (12) for pressurizing a compressor control port (14) via a compressor control line (16), a second valve unit (18) for opening a regeneration line (20), wherein the second valve unit (18) is connected to the compressor control line (16), and an unloader valve unit (22) for unloading a supply line (24), wherein a control port (26) of the unloader valve unit (22) is connected to the regeneration line (20). According to the invention, the steps of pressurizing the compressor control port (14), opening the unloader valve unit (22), locking the unloader valve unit (22), and depressurizing the compressor control port (14) are contemplated. Further, the present invention relates to a control unit for a compressed air supply device.
