A biomedical technician (biomed) at a user facility reported that a fresenius 2008t hemodialysis (hd) machine had a 24 volt low on power up.The power logic board r26 was replaced but failed and exhibited smoke.The machine failed to send data to actuator board when in service mode.The biomed was advised to switch the power supply or power control board because there was likely a software mismatch.The biomed reported that there was no melting, smoke, spark, flame observed.The machine has approximately 13500 hours.The biomed confirmed that the r26 exhibited smoke and there was no patient involvement.The damaged parts were discarded and is not available to be returned to the manufacturer for physical evaluation.The machine is currently out of service.
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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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