Instructions

24
g) Replacing the fuse
If it is no longer possible to switch on the mains power supply, the mains fuse
has probably tripped.
Proceedasfollowstoreplacethemainsfuse:
1. Switch off the mains power supply and remove all the connection and power cables.
2. Use a suitable screwdriver for slotted screws to prise out the fuse holder on
the rear of the device.
3. Replacethedefectivefusewithanewne-wirefuse(5x20mm)ofthesame
typeandratedcurrent,whichisasfollows:F3.15A/250V(fastblowing).
4. Pressthefuse-linkbackintothefuseholderuntilitsnapsinproperly.
9. Troubleshooting
By purchasing the switched-mode mains power supply you have acquired a product that is reliable and operation-
allysafe.However,problemsandmalfunctionsmayoccur.Forthisreasonwewanttodescribehowtotroubleshoot
potential malfunctions:
Always heed the safety instructions!
 Anyotherrepairworkmustalwaysbecarriedoutbyqualiedexpertsfamiliarwiththehazardsinvolvedand
withtherelevantregulations.Unauthorizedmodicationsandrepairsoforinsidethedeviceleadtoexpiry
of the warranty.
Malfunction adfadf 1Possible cause
The mains power supply
does not work
Is the green power indicator (2) of the mains power supply lit?
Checkthemainsvoltage(youmayalsowanttocheckthemainsfuseinthedevice
or the line circuit breaker).
Connected consumers do
not work
Correct voltage set?
Correct polarity?
Overloadofthemainspowersupply(display7)?
Check the technical data of the consumers.
Theoutputvoltageof13.8V
cannot be changed
Themainspowersupplyhasbeenswitchedtothexedvoltagemode.
Changethepositionofthexedvoltageswitchunderneaththedevice.
Periodicallycheckthetechnicalsafetyofthedevice,e.g.checkfordamagetothehousingetc.