User Manual
rev.
1.1 of 16.12.2019
EN
Original manual
Fanmig J5 MOST
-16-
10.3 Faults during LIFT TIG DC welding
Attention:
Make sure that the LIFT TIG DC welding method is selected with switch (3).
Fault
Potential cause
Recomme
ndations
Oxidation on the joint
surface, strong
discoloration
1. Insufficient gas cover
2. No gas cover on the ridge side
Adjust the welding current to the
electrode diameter. Increase gas flow
and guide the TIG torch in a way that
ensures adequate gas protection.
Tungsten inclusions
1. Poor sharpening or blunt tungsten
electrode
2. Tungsten electrode diameter too small
3. Poor electrode guidance during welding
(contact with the weld)
Sharpen the electrode with a sharpener
WAG 40 MOST. Adjust the electrode type
and diameter to the task. Do not allow
electrode contact with a seam during
welding.
Bladders
• Dirty material or welding wire
•
Welding speed too high and gas shield
missing
• Blowing the gas shielding
• Water around the weld
Clean and dry the material before
welding.
Guide the torch according to the
welding technology.
Protect the joint against wind, drafts,
etc.
Cracks present after
welding
• Welding current too high for the electrode and
material thickness
• Soiled material
• Moisted cover
Adjust the welding current to the
electrode diameter.
Clean and dry the material before
welding.
Guide the torch according to the
welding technology.
Table 4: Faults during LIFT TIG DC welding.
10.4 Error codes shown on the display
10.4.1 Power supply error,
current too high. Turn the device off and on
again, if the error persists, contact the technical service.
10.4.2 Device overheating,
thermal sensor has tripped. Do not turn the
appliance off until the fan has cooled down.
10.4.3 Wire feed error,
too much drag in the wire feed. Check the correct roll
pressure, the feeder guides are unobstructed. Check the wire liner in torch and
contact tip, replace if clogged or worn.
