In the course of investigation the device was checked on site and reported error codes were analyzed by the manufacturer.The described behavior could be confirmed, the evita xl carried out several warm starts between 10:16 and 10:17 on (b)(6) 2020.The error codes displayed at this time were associated with a faulty mixer cartridge o2.The resulting change in power consumption was detected by the internal monitoring and warm starts were performed in order to correct the issue.During a warm start (duration approx.8 seconds), the evita xl opens the airway system to allow spontaneous breathing.This process is accompanied by an alarm.If the boot sequence has been successfully completed, ventilation is continued with the previous parameters.Immediately after restart of the ventilation, a "mv low" alarm is generated, which continues until the applied volume is greater than the lower set limit value for the minute volume.The evita xl was manufactured in may 2010.It behaved according to its specification and generated alarms to inform the user about the deviation.The affected component was replaced on site by a service technician.A subsequent device test was passed without any deviations.The number of similar cases, related to the same root cause, is within the expected range of the respective risk assessment and thus accepted.
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