The olympus field service engineer (fse) was dispatched to the user facility.Fse inspected the error log and no related errors were found.Checked internal tubing and all appear to be intact and connected properly.Ran several performance test cycles, did not observe any black debris in basin following the test cycles.Drained fluid in disinfectant tank and inspected the tank internally, found small chunks of debris stuck to the wall of the tank.There's a possibility that the debris was getting picked up during the circulation of the chemical and ends up in the mesh filter.Wiped down the inside of the tank thoroughly, ran multiple performance test cycles, no black debris found in disinfectant tank and in the basin mesh filter.Equipment repaired and verified according to oem instructions.Software attributes have been verified and confirmed.Equipment passed the electrical safety test.The cause could not be determined.No further information was reported.
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