Date of event is unknown, no information has been provided to date.D10, h3 and h6 - evaluation codes: updated device evaluation: one device was returned for investigation.Tamper seal was not broken or removed.Visual inspection found the device was in good condition.Functional testing was not able to duplicate or confirm the complaint.A worn valve would eventually cause over delivery.A gauge was also used to measure the air detector height, as it could potentially restrict the flow rate of the device.The air detector failed the height test.The most probable cause for delivering too slow would be a programing issue.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.Replaced valves and air detector.
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