Additional information: d4: serial number and h4: manufacture date.H3 - other: device not returned for investigation.H6 - evaluation codes: updated.Device evaluation: no product sample was received; therefore, visual and functional testing could not be performed.The reported issue could not be confirmed.The most probable cause is a faulty input manifold assembly.The device would stay in a continuous flow manner.Therefore, draining o2.The product's history records were reviewed and there were no non-conformances nor service-related issues that would have resulted in the reported complaint.If the product is returned, the manufacturer will reopen this complaint for further investigation.
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