A user facility biomedical technician (biomed) reported to technical support multiple 24v issues, including sending actuator data and wd long pulse failures, during power up of a 2008t bibag dialysis machine.No patient involvement or adverse event was reported.The bibag wires were pinched when the hydraulics were re-installed after a leaking check valve was replaced.Several boards in the card cage shorted out with visible smoke.The function, actuator-test, sensor boards, motherboard, and the power supply board was replaced.It was reported that the machine is back in service without further issues.The biomed confirmed that the smoke did not set off any alarms at the clinic.There was no spark, flame, or arching noted.The machine has not had any past problems with failing the electrical leakage test.No parts are available to be returned to the manufacturer for evaluation because they were discarded.The biomed reiterated that reiterated that there was no patient involvement, and that there was no harm to any staff members due to the reported issue.
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Plant investigation: no parts were returned to the manufacturer for physical evaluation.Additionally, no on-site evaluation was performed by a fresenius regional equipment specialist (res).A records review was performed on the reported serial number.An investigation of the device manufacturing records was conducted by the manufacturer.There were no non-conformances, or any associated rework identified during the manufacturing process which could be related to the reported event.In addition, the device history record (dhr) review confirmed the results of the in-progress and final quality control (qc) testing met all requirements.The investigation into the cause of the reported problem was not able to be confirmed.A definitive conclusion regarding the complaint incident cannot be reached without a physical examination of the complaint device.
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