H10: additional narrative: the customer reported that the cpu fan is bad and causing the system to overheat and shutdown.Service requested: the customer requested an exchange for the defective unit.Service provided: the customer was provided with part number for the defective unit.Investigation result: the prefense (a/edns-9001; sn: (b)(6) was placed into service on 16/18/2011, which is 6 years prior to the reported issue.A/edns-9001 service manual revision i provides guidance for troubleshooting, servicing, maintaining or repairing the prefense edns-9001.A review of device history found no previously similar reported issues with the unit or nka servicing.No similar tickets using term "heatsink fan bad" were found.The root cause of the heatsink fan going bad was unable to determine.The possible cause of the issue was determined to be dust accumulation on the heatsink fan.The device was in use with a patient and there was no reported patient harm.Correction: f9.Approximate age of device: date added.G4.Date received by manufacturer: should be 01/11/2018 not 02/07/2018 as listed on mdr initial report.Additional information: b4.Date of this report.D4.Unique identifier (udi) number.E2.Health professional.E3.Occupation.F7.Type of report.G4.Date received by manufacturer.G7.Type of report.H2.If follow-up, what type? additional information.Correction.H3.Device evaluated by manufacturer? h6.Event problem and evaluation codes.H10.Additional manufacturer narrative.
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