
REF C04717-02-91 Q-NRG User Manual, Edition 4.2
Chapter 6 - Troubleshooting
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Miscellaneous Problems
Problem
Cause
Corrective action
Device does not turn ON
Rechargeable battery completely
discharged
AC power source not providing power
Recharge battery
Check mains socket and power cord
Check fuses
Battery does not recharge
properly
Battery not properly inserted
AC power not providing power
Check battery placement
Check mains socket and power cord
Check fuses
Black screen appears during FW
upgrade process
User interface not correctly uploaded
Turn the unit off (long press on the ON/
OFF button) and try again
Device behaves erratically or even
shuts down by itself
Rechargeable battery fully discharged
Recharge battery or operate connected
to mains
Battery life between charges is
shorter than usual
Battery maybe exhausted (expected
lifetime of Li-Ion batteries is limited)
Replace Battery
Device freezes or reacts erratically
during normal operation
Archive or program memory corrupted
Get latest firmware and install to
device as described in Maintenance/
Upgrade Firmware
Touchscreen not responding to
commands
Lock screen active
Unlock the screen by holding the
unlock icon
OMNIA SW freezes during
Bluetooth pairing
With some HW/OS configurations,
OMNIA does not receive confirmation
message from operating system even
though pairing process has been
successfully completed
Terminate CosmedLab.exe process from
Windows task manager and restart
OMNIA
Unable to pair Bluetooth with PC
Several possible causes
Refer to “Bluetooth Troubleshooting”
Unable to connect the device to
PC via USB
Drivers not recognized
Check PC device manager
Replace USB cable
Calibration values out of range
One or more calibration factors outside
normal range, as reported in Calibra-
tion/Results/Normal Ranges
Repeat calibration
Access Calibration/Cal. Factors/Results
menu, compare results with normal
ranges and contact customer support
providing details about exceeding
parameters
Patient breathing, no values
shown on LCD (MASK Mode)
Device is not detecting breaths (Flow,
Volume or IN/EX) because:
-electronic reader not properly
connected
-turbine rotor does not rotate
-optoelectronic reader broken
Inspect turbine and optoelectronic
reader assembly
Re-calibrate the turbine
Replace turbine
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