Device evaluation : one bci monitor and adapter was received for investigation in good condition.After charging the 9004050 monitor overnight, pressing the on/off button to power up the monitor, it was determined the device would not turn on.Next, the investigator plugged in the ac/dc 1616 adapter for a factory calibration.Without using the power from the main battery, and only taking power from the ac/dc 1616 power supply, the monitor would not power on.Therefore, the main board was replaced.The main board failure confirms the customer's reported complaint.In addition, the device co2 and flow rate was tested with flow of 166 ml/min (spec: 150+/-20ml/min) and passed.Furthermore, it was detected that the tamper sticker was not intact, implying customer may have induced damage.The charging circuit on the mainboard failing to charge battery was noted to be known for resulting from the use of wrong power supply, causing the mainboard to short.Based on the evidence, the complaint allegation was confirmed.The failure likely resulted from a user error failing to follow the correction instructions from the operator's manual (chapter one) where it states ""patient safety can be compromised by the use of a power supply not supplied by smiths medical.Use only the power supply included with your monitor, or approved by smiths medical.".
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