The customer reported burning odor while analyzing patient samples involving the coulter lh 500 hematology analyzer.The customer stated there was no smoke, arcs, sparks or fire, and the fire department was not requested.There was no operator injury or adverse effect associated with this event.The customer turned off the instrument and discontinued use.There was no report of impact to patient results.There was no patient injury associated with this event.A beckman coulter field service engineer (fse) was dispatched to assess the instrument.
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The field service engineer (fse) discovered component t1, on the printed circuit board (pcb) assembly, failed causing the burning odor.The fse replaced the differential mix motor assembly and verified instrument operation.Service activity performed was verified to meet the specified requirements per established procedures.The instrument conformed to the manufacturer's published performance specifications and was returned to normal operation.In conclusion, the likely cause of the event is attributed to the differential mix motor assembly.(b)(4).
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