Eliminating faults
Generally minor faults can be easily and quickly eliminated. Before enlisting the after-sales-service,
please check by means of the table if you can eliminate the fault yourself. If you do not manage our
after-sales-service is at your disposal. You will find the address and telephone number on the last page
of these instructions. Keep these instructions and the invoice for the complete life of the equipment in
order to facilitate and to speed up any outside support you might need.
Fault
Possible cause
Remedial measures
Equipment does not work
No electric power supply.
Phases are missing.
Check mains fuse
Have mains supply checked.
LED 2 lights up
Overheating protection has
put itself into operation.
Allow equipment to cool down.
LED 1 does not light up and
ON/OFF-switch jumps to “0"
One phase is missing.
Fuse F4 defective.
Pc-board defective.
Check mains supply.
Replace fuse.
Contact after-sales service.
ON/OFF-switch jumps to “0"
Mains fuse too poor.
Mains voltage does not suffice.
Cross section of extension
cable is too small.
Compare mains fuse and
connected loads with values in
chapter “Technical data”.
Choose correct cross section for
extension cable.
LED 4 and LED 5 do not
light up
Trip line defective.
Gun is not properly connected.
Fuse F5 defective.
Check trip line.
Check connections.
Contact after-sales service.
Ventilator does not work
Fuse F1 or F2 defective.
Contact after-sales service.
Gun does not lift,
LED 4,5 and 6 light up correctly,
but there is no welding done
Lift too low or lift too big.
Check lift and adjust correctly
(see instructions for welding
gun).
Gun does not lift and LED 4
does not light up
Protection switch is activated.
Control- or extension cable or
welding gun defective.
Fuse F5 defective.
Switch equipment off and on
again. If LED 6 still lights up,
the control- or extension cable
or the welding gun are
defective.
Check fuse F5.
Eliminating faults
31
