User manual

28
Malfunction Possible cause
The mains power supply Is the green power indicator (2) of the mains
does not work power supply lit?
Check the mains voltage (you may also want to
check the mains fuse in the device or the line cir-
cuit breaker).
Connected consumers Correct voltage set?
do not work Correct polarity?
Overload of the mains power supply (display 7)?
Check the technical data of the consumers.
The output voltage of The mains power supply has been switched to
13.8 V cannot be changed the fixed voltage mode.
Change the position of the fixed voltage switch
underneath the device.
Periodically check the technical safety of the device, e.g. check for damage to the
housing etc.
Any other repair work must always be carried out by qualified
experts familiar with the hazards involved and with the relevant
regulations. Unauthorized modifications and repairs of or inside
the device lead to expiry of the warranty.