The field service engineer (fse) reported a burning smell from the coulter lh 780 hematology analyzer when servicing the instrument.The instrument was generating probe wipe obstruction errors when the burning smell was noticed.There were no sparks, arcs, flames or smoke observed and the fire department was not called.The fse was wearing personal protective equipment (ppe) consisting of gloves, eye protection and a laboratory coat at the time of the occurrence.Erroneous patient results were not generated and there was no change or affect to patient treatment in connection with this event.
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