While troubleshooting 15 v out of range errors from the coulter lh 780 hematology analyzer the field service engineer (fse) noticed a circuit board had shorted and was burnt.There was no smoke, sparks, arcing or flames reported by the customer.The fire department was not called and there was no death or injury as a result.There was no medical attention required by any operator.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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