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This chart will assist you in resolving common problems you may encounter. These are not
all the possible solutions.
PROBLEM
No "life" from welder, display is
off
Feed motor operates but wire will
not feed
Lack of penetration
Wire is birdnesting at the drive
roller
Wire burns back to contact tip
Workpiece clamp and/or cable
gets hot.
Gun nozzle arcs to work surface. Slag buildup inside nozzle or

TROUBLESHOOTING

POSSIBLE CAUSE
Input cable or plug malfunction.
Wrong size fuse.
Faulty wire feeding motor (rare)
Insufficient feed roller pressure
Burr on end of wire
Liner blocked or damaged
Voltage or wire feed speed too
low.
Loose connection inside the
machine (rare).
Worn or wrong size contact tip.
Loose gun connection or faulty
gun assembly
Wrong size wire.
Torch moved too fast.
Eccessive pressure on drive roller
Gun liner worn or damaged
Contact tip clogged or damaged
Liner stretched or too long
Contact tip clogged or damaged
Wire feed speed to slow
Wrong size contact tip
Bad connection from cable to
clamp
nozzle is shorted.
EN-20
POSSIBLE SOLUTION
Check for proper input cable
connection
Check fuse and replace as
necessary
Replace wire feeding motor
Increase roller pressure
Re-cut wire square with no burr
Clear with compressed air or
replace liner
Re-adjust the welding parameters.
Clear with compressed air and
tighten all connections.
Replace the contact tip.
Tighten or replace torch.
Use correct size welding wire.
Move the gun smoothly and not
too fast.
Adjust pressure on drive roller.
Replace wire liner
Replace contact tip
Cut wire liner at the right lenght
Replace the contact tip
Increase wire speed
Use correct size contact tip.
Tighten connection or replace
cable.
Clean or replace nozzle.

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