The reported complaint that the autopulse platform (serial (b)(4)) displayed user advisory - "(ua)07" (discrepancy between load 1 and load 2 too large) error message upon powering on was confirmed during functional testing and based on the review of the archive data.The root cause of the ua07 advisory message was due to defective load cells, likely attributed to wear and tear.The autopulse platform was manufactured (b)(4) 2009 and is over 12 years old, well past beyond its expected service life of 5 years.Visual inspection of the returned autopulse platform was performed, and no physical damage was observed.Review of the archive data showed multiple user advisory (ua) 07 (discrepancy between load 1 and load 2 too large) on the customer's reported event date; thus, confirming the reported complaint.Functional testing failed due to the ua07 advisory message displayed upon powering up the platform; thus, confirming the reported complaint.Load cell characterization test results confirmed that both load cells were defective.To remedy ua07, the load cells needs to be replaced.Zoll is awaiting on customer's approval for service repair.Historical complaints were reviewed for service information related to the reported complaint, and there were no similar complaints reported for autopulse platform with serial number (b)(4).
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