This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation, the cause of the e433 could be a result of the following: the user activates the foot switch while the generator is booting, faulty foot switch, defective cable connection between hvps board and generator board, defective hvps board, defective generator board, or defective motherboard.The generator boards with error e433 found a destroyed transformer tr1.There has since been a design change to prevent reoccurrence.Olympus will continue to monitor field performance for this device.
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