One device was returned for investigation.Investigators noted device with noisy pump.Minor wear and tear enclosure, front cover, tank cover, and line cord.Yes the issue was duplicated, device flow rate was low but no heating issues were found.A faulty pump was noted as the reported problem.The were unable to determine the cause of the problem.Replaced pump, enclosure, front cover, tank cover, and line cord.Performed preventative maintenance.A manufacturing dhr review was not performed because the results of the complaint investigation do not indicate a problem with the manufacture of the device.No causes or potential causes of the customer's reported problem were found during the review of service and repair records.
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