16
TROUBLESHOOTING
SYMPTOMS
POSSIBLE CAUSES
REMEDIES
Debris is blocking up the opening.
Clean out the contact tip or change it
and replace the anti-adherence product.
Ref.041806
The wire skids in the rollers.
-
Check the roller pressure or replace it.
- Wire diameter incompatible with roller
-
Covering wire guide in the torch
incompatible.
The welding wire speed is not
constant.
The rollers slide over the wire
Check and tighten the roller’s screws.
Reel or roller brake too tight.
Adjust the brake and rollers.
The wire-feeder motor doesn’t
operate.
Electrical supply problem.
Check that the power switch is in the
"On" position.
Covering wire guide dirty or
damaged.
Clean or replace
Roller axle key missing
Reposition the key.
Bad wire feed.
Reel brake too tight
Adjust the brake
Bad connection to the main supply. Check the mains connection and ensure
the supply is 400 V (3PH).
Bad earth connection.
Check the earth cable (connection and
clamp condition).
No welding current
Torch trigger inoperative.
Check the torch trigger / replace torch
Guide wire sheath crushed.
Check the sheath and torch body.
Wire jammed in the torch
Clean or replace.
No capillary tube.
Check the presence of capillary tube.
The wire jams (after the
rollers)
Wire speed too fast
Reduce the wire speed
The gas flow rate is not sufficient.
Adjust flow range 15 to 20 L / min.
Clean the work-piece.
Gas bottle empty.
Replace
Gas quality unsatisfactory.
Replace
Air flow or wind influence.
Prevent drafts, protect welding area.
Gas nozzle dirty.
Clean or replace the gas nozzle.
Poor quality wire.
Use suitable WIRE for MIG-MAG welding.
The welding bead is porous
Work-piece in bad condtion. (rust,
etc…)
Clean the metal before welding.
Arc voltage too low or too high.
See welding settings.
Bad earth connection.
Check the earth cable (connection and
clamp condition)
The arc produces a lot of
sparks
Insufficient gas flow.
Adjust the gas flow.
No gas connection
PowerMig Twin 400-4 : Check that the
gas pipe is plugged to the correct
connector.
No gas flow at the end of the
torch.
Bad gas connection.
Check the gas connection at the welding
machine. Check the flowmeter and the
solenoid valves.
