The device was received at the local service facility for investigation.The technical service report indicates: "high pressure valve leakage, low pressure unit calibration error.Replace high pressure valve and low pressure unit".Probable root cause: - pressure sensor malfunction / out of calibration - software malfunction - use error - system design - unwanted movement of internal components / wiring - power button inadvertently turned off - tubeset/gas supply inadvertently detached/loose - loss of power - pressure button does not disengage - electromagnetic interference (emi) from rf communication, hf surgical instruments, esd, or power surge - power supply malfunction - flow sensor malfunction - leaks from internal connections or seals - ppv failure - manufacturing/ service error.The reported failure mode will be monitored for future reoccurrence.
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