The device was received for evaluation.During functional testing, pump failed the delivery accuracy was reproduced.Evaluation sent the device for flow accuracy verification testing and the unit was ran for 15 minutes at 40 ml/hr.The vtbi was 10 ml, and 10.901 ml was delivered.The error percentage was 9.01%.A service history review was performed and revealed that the device has no previous service events; therefore, servicing did not cause or contribute to the reported event.The reported condition was verified.The cause of the condition was determined to be failed upper/lower valve, finger, and pressure plate springs.The upper/lower valve, finger, and pressure plate springs requires replacement to address this issue.Should additional relevant information become available, a supplemental report will be submitted.
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