|
A user facility biomedical technician (biomed) reported to fresenius technical support (ts) that a 2008t hemodialysis machine was experiencing an issue with its display screen.The biomed stated the screen was black.The biomed said they had already replaced the ui mics board, the ui to function board ribbon cable, and the screen.Ts advised the biomed to check the motherboard and all wired connections and connectors.Additional details were provided during follow-up with the biomed.Upon further investigation, the biomed identified thermal damage on the connector of the ground wire that goes from the power module to the main distribution board.The biomed replaced the whole power module (which included a new ground wire and connector), and this resolved the reported screen issue.No other components were found to be damaged.The distribution board did not have to be replaced.The biomed did not have any photos of the charred wire/connector.There was no burning smell noted, and there were no signs of any smoke, sparks, or flames.The biomed said the machine had 43,487 operating hours on it at the time of the event.The machine did not have any past problems failing the electrical leakage test, and it was plugged into a hospital grade ground-fault circuit interrupter (gfci) outlet.The biomed confirmed the machine was back in service and fully operational.There was no patient involvement associated with this event.The replaced parts were not available to be sent back for evaluation.
|