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* Regularly remove the spatter from the inside of the nozzle to prevent a short circuit. Use nozzle gel to
minimize spatter buildup in the nozzle.
* Use appropriate wire listed on the parameter chart. Do not use rusty or dirty wire.
* Clean the dust and metal filings from the liner with compressed air. The dust is accumulated by friction
between wire and liner, drive rolls and magnetic attraction of the wire to metal debris. If wire feeding is
uneven this may be the problem.
* Do not over tighten the drive roll idler are, it will increase resistance, friction and possible deform the wire.
7. Troubleshooting
7.1 Troubleshooting (See Table)
No.
Problem
Possible Causes
Solutions
Input fuse/breaker blown or tripped
Change fuse, reset breaker
Power not connected
Check and turn on power
1
No wire feeding
function when
MIG gun trigger is
depressed.
MIG gun trigger leads or switch not working
Change trigger leads and MIG gun
switch
Potentiometer not set high enough
Change potentiometer
Wire stuck in contact tip
Change contact tip
2
Wire feeding
motor doesn’t
work
Drive idle arm too loose or wire is not
in groove.
Tighten drive idle arm and check
to see if the wire is in the proper
drive roll gear.
Too large or worn contact tip results in unstable
arc.
Change contact tip to match the wire
diameter
Long light-duty gauge extension cord
Use 12 gauge or heavier extension
cord
Too low input voltage
Check input power for sufficient
voltage
3
Arc is unstable and
produces excess
spatter
Wire feed resistance is too high
Clean or replace the liner and use the
MIG gun extended straight
Ground clamp not connected or damaged
Connect or replace ground lead
4
No Arc
Dirty work piece where ground clamp is
attached, preventing a proper ground
Remove rust, paint or other contaminants
that prevent a good ground connection
MIG gun O-ring or hose broken
Replace O-ring or gas hose in gun
External gas hose pinched or not connected
Check gas system
5
No shielded gas
Solenoid or internal gas line not functioning or
disconnected
Replace or secure gas hose connections,
replace solenoid.
6
Others
Call customer service