Complaint confirmed.One unpackaged ar-6480, sn n15067c19 pump was received for investigation.Functional testing identified that the locking levers lacked responsiveness, and further visual evaluation identified wear along the outer diameter of both the magnets located on the backs of each lever, as well as the connection points on the front of the door assemblies.The ar-6480, sn n15067c19 was tested with ar-6410 and ar-6430 tubing sets from stock, and it was observed then that the motor was producing a loud noise while running.While the root cause of the noise remains undetermined, a review of the device history record associated with the complaint batch identified that the device has been in service since 2019.No other abnormalities were identified.The remainder of the evaluation was successful.
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