(b)(4).Device evaluation by manufacturer: field service engineering visited the customer to address to address the reported event.Fse was able to confirm the error in the error log.During further troubleshooting, fse determined that the error message was caused by needle being out of alignment in the x-axis with a sample loader.Fse then cleaned and lubricated both rails in the sample loader and cleaned the sampling loader.Fse then cleaned and lubricated the sampler z and y axis.Fse ran 10 patients to verify proper alignment and chromatograms.Fse also calibrated and ran quality controls with acceptable results.The instrument was verified as operational.There was no further action required by fse.A 13-month complaint history review and service history review for similar complaints was performed for serial number (b)(4) from (b)(6) 2017 through aware date (b)(6) 2018.There was one similar complaint identified during the searched period.The g8 variant analysis mode operator's manual under chapter 6, troubleshooting, states the following: the 6.3 error messages: when consulting with technical support about a problem, please note the error message and error number.In addition, if you follow the suggested solutions in this section and are still unable to resolve the error, or if you encounter an error message that is not noted, contact technical support.General error messages: with these errors, the assay stops and the analyzer immediately enters stand-by state.The 710 z1-axis error: an abnormality occurred in the up and down movement of the sampling needle.If this occurs during a stat assay, check that the container setting (cup or tube) is correctly set.The error also occurs when the sample vial was not recognized as a primary tube, due to the disoriented sample sensor.The most probable cause of the reported event was the sample needle was out of alignment.
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