Troubleshooting; Possible Cause - Scheppach WIG1000-Multi Original Bedienungsanleitung

15. Troubleshooting

The following table shows fault symptoms and describes remedial measures in the event of your machine failing to
work properly. If you cannot localise and rectify the problem with this, please contact your service workshop.
Fault
The machine will not
switch on
No ignition spark
Machine cannot be
operated even though
the indicator lamp for
operation is on
Machine cannot be
operated because
overheating indicator
light is on
Irregular arc / welding
power

Possible cause

No mains voltage
The main fuse has tripped
On / off switch defective
Earth clamp not connect-
ed to the device
Earth clamp not fitted on
the workpiece
Hose assembly loose
Inadequate connection
between earth clamp and
workpiece
Machine is overheated
Duty cycle or current is
too high
Loose connections
Wrong polarity
Workpiece is painted or
dirty
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Remedy
Check the socket, mains cable, cable, mains plug;
have these repaired by a qualified electrician if nec-
essary.
Check the main fuse
Repair by customer service department
Connect the earth clamp to the welding machine
Fit the earth clamp on the workpiece
Tighten the hose assembly
Make sure that the area where the earth clamp is
attached is clean, bare metal, free from dirt, paint and
oil.
Allow the machine to cool down
Reduce the duty cycle or the current setting
Check the connections and clean them
Connect with correct polarity
Clean the workpiece thoroughly until the surface is
bare metal and free of dirt and paint.
GB | 35