The reported complaint of the autopulse platform (sn (b)(6) displayed a user advisory (ua) 20 (position out of range) error message was not confirmed during archive review and the initial functional testing.There were no device deficiencies found during the evaluation of the returned platform that could have caused or contributed to the reported complaint.During visual inspection, there was no physical damage observed on the autopulse platform.The archive data review did not show any (ua) 20 error on or around the customer's reported event date.Unrelated to the reported complaint, the archive data indicated several (ua) 07 (discrepancy between load 1 and load 2 too large) and (ua) 17 (motor on for too long during active operation) errors around the reported event date.The (ua) 17 error was cleared by the customer and was not duplicated during the platform testing.User advisory is normally a clearable error message and is designed into the autopulse platform to alert the operator that autopulse has detected one of several conditions.Per the autopulse hangtag - advisory codes description and action, user advisory 17 is an indication that the lifeband is twisted, or battery voltage is low.The recommended actions to take for this type of user advisory are: open lifeband, start manual cpr, check battery and lifeband, pull up completely on the lifeband, ensure that the patient and the band are properly aligned, and press restart.Functional testing of the autopulse platform failed due to user advisory (ua) 07 (discrepancy between load 1 and load 2 too large) error displayed upon power on, unrelated to the reported complaint.The root cause of the (ua) 07 error was the defective load cell module 2.The defective load cell needs to be replaced to address the (ua) 07 error.Waiting on the customer's approval for service repair.
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