Troubleshooting and tips
Power-on indicator remains unlit after you have
switched on your device
This may be due to the following:
The mains voltage supply is faulty
►
Check whether the power cable is plugged properly into the device and a grounded mains
outlet.
►
Switch the device on.
Internal power supply overloaded
►
Pull the power plug of the device out of the mains outlet.
►
Wait for a moment.
►
Plug the power plug into a properly grounded mains outlet again.
►
Switch the device on.
The device cannot be switched off with the ON/OFF
switch
Cause: The device has not been switched on with the ON/OFF switch.
►
Press the ON/OFF switch again.
Cause: System crash
►
Press the ON/OFF switch for at least 4 seconds, until the device switches off.
The operating system is not shut-down properly in the process. Error messages are
i
therefore possible the next time the system is booted.
The device cannot be switched on with the ON/OFF
switch (0-Watt devices)
The lithium battery is empty
►
Press the emergency on button at the rear of the device, see chapter "Switching on a device
when the lithium battery is discharged (0-Watt devices)".
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A26361-K691-Z220-1-7619, edition 2