It was reported that the hl20 pump intermittently displayed the error message: ¿runaway¿.The event occurred during a routine check.No harm to any person has been reported.A getinge field service technician (fst) was sent for investigation and repair on 2024-03-29.The tacho strobe foil was replaced.And as a preventive measure all connection of the pump were reset and the belt tension re-adjusted.The fst performed safety, calibration, and functionality checks to factory specifications.All function tests are passed.Additional device observed were made to make sure the failure is solved on 2024-03-18 and 2024-03-29.As confirmed by the getinge field service technician during repair on 2024-03-29 the most probably root causes was determined as defect marks on the strobe foil.Some of the marks were no longer clearly visible.Since the sensor no longer detects one or more marks on the tacho strobe foil and it incorrectly measures a low speed at the pump head.The review of the non-conformities has been performed on 2024-04-18 for the period of 2007-10-21 to 2024-02-28.It does not show any non-conformity in regard to the reported product and failure.There is no indication that manufacturing issues occurred during this time, thus production related influences are unlikely.The device was manufactured on 2007-10-21.Based on the results the reported failure "error message: ¿runaway¿" could be confirmed.The customer will be informed about the results by the getinge sales and service unit.The occurrence rate was calculated for the reported issue and it was determined that this is not a systemic issue.Therefore, no remedial action is required.The occurrence rate related to the reported issue is currently being monitored as part of maquet cardiopulmonary¿ s trending program and additional investigations or corrections will be implemented in case of adverse trending.
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