A distributor field service engineer (fse) was at the customer site to address the reported issue.The fse verified the analyzer and confirmed the tube was obstructing the sample probe movement.The fse replaced the sample probe and positioned the tube out of the sample probe moving path.All positions were adjusted.The aia-360 analyzer returned to operation.No further action required by field service.A 13-month complaint history review and service history review for similar complaints was performed for serial number (b)(4), from 08jun2018 to aware date (b)(6) 2019.No other similar complaints were identified during the search period.The aia-360 operator's manual states the following: error 2011 - air detected [sample] there is no contact with the liquid surface after sample suction.Contact the service department.The most probable cause of the reported issue is due to the tube obstructing the sample probe movement.
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