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X3 MIG Welder© Kemppi Oy 2018 1843
OPERATING MANUAL
5. TROUBLESHOOTING
Problem Cause
The machine stops
working. Overheating
indicator is lit, and Err 4 is
displayed.
The machine has overheated.
Ensure that cooling air has unrestricted ow.
The machine’s duty cycle has been exceeded.
If no other damage is caused, the fan starts working and the machine recovers
within a couple of minutes.
If the problem persists, please contact Kemppi service representative.
Machine stops working.
Err 2 or Err 3 is displayed.
The mains voltage is either too low (Err 2) or too high (Err 3). *
The machine recovers automatically, when the mains voltage is in the
recommended range (342 – 484 V).
Machine stops working.
Err 43 is displayed.
The wire feeder motor is overloaded.
Check that you are using the right wire type and that the wire feed route is
unobstructed.
Poor welding result Several factors aect the welding quality.
Check wire feed calibration.
Check that the earth return clamp is properly attached, the point of contact is
clean and that the cable and its connectors are intact.
Check the voltage and wire speed settings on the control panel are correct for the
given wire size and type.
Check that the shielding gas ow rate at the gun nozzle is correct.
Check that the shielding gas is suitable for the ller wire used.
Check that the wire feed is constant, and adjust if necessary.
Check that the mains voltage is not too irregular.
Main switch indicator does
not switch on
The machine has no mains voltage
Check the mains fuses
Check the mains cable and the wall plug
* Contact Kemppi service in case of Err 2 and Err 3 without mains voltage cause.
6. MAINTENANCE
6.1 Regular maintenance
Check regularly the electrical connections of the ma-
chine. Clean any oxidised connections, and tighten the
loosened cable connections.
Let authorised Kemppi service workshop make periodic
service to your machine. Appropriate use and regular
service guarantee trouble-free use of the machine. This
allows you to avoid interruptions and increase the pro-
ductivity of the machine.
NOTE! Remember that the machine may be repaired
only by an electrical contractor or installer authorised to
perform such operations.
6.2 Disposal of the machine
Do not dispose of electrical equipment with normal
waste!
In observance of European Directive 2002/96/EC on
waste electrical and electronic equipment, and its im-
plementation in accordance with national law, electrical
equipment that has reached the end of its life must be
collected separately and taken to an appropriate environ-
mentally responsible recycling facility.
The owner of the equipment is obliged to deliver a de-
commissioned unit to a regional collection centre, per
the instructions of local authorities or a Kemppi repre-
sentative. By applying this European Directive you will
improve the environment and human health.
17


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