The autopulse, serial number (sn) (b)(4), was returned for evaluation and repair on 9/22/2016.A visual inspection indicated a 'sticky' encoder shaft, and the top cover metalized coating layer was corroded with fluid.These issues are unrelated to the reported complaint.Historical complaints were reviewed for service information related to the reported complaint and there was no previous history of related complaints for autopulse sn (b)(4).A review of the autopulse archive indicated an occurrence of ua7 (discrepancy between load 1 and load 2 too large) confirming the customer's complaint.The initial functional test passed without any faults, ua's, or errors, indicating that the ua7 observed in the archive was cleared by the user.Additional testing showed that the load sensing system had detected a weight/load imbalance between the two load cells, which is checked during power-on self-test.Load cell characterization test indicates load cell module 2 was under reported (defective).In summary the customers reported complaint of the autopulse displaying ua7 was confirmed during the archive review but not functional testing.Additional testing showed that the load cell module 2 was defective, but still functioning.
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