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Page 9SKU 06098
Troubleshooting
Symptom Possible Cause Checks and Remedies
MIG Welder does not
work when turned on.
No power to MIG Welder.
Check Line Cord and plug. Check facility circuit
breaker.
Overheated during use. In overload mode; Allow to cool down.
Wire does not feed
properly.
Insufficient wire feed spring tension. Tighten spring tension knob. See photo on page 6.
Wire guide sheath blocked. Clean or replace wire sheath.
Wire spool axle nut too tight. Loosen nut so reel moves freely.
Braking on wire reel excessive. Loosen brake using adjusting screw.
Wire reel has oxidized, poorly wound
or quality wire.
Replace wire reel.
Reduced welding
power.
Ground Cable not connected or poor
connection.
Check that the Ground Cable Clamp is securely
attached to the metal being welded. This area should
be cleaned down to the metal and free of paint, dirt
and grease.
Internal connection loose on switches.
A qualified technician should open the unit and check
and tighten any loose connectors.
Faulty contactor. Check the state of the contacts and the mechanical
operation of the contactors.
One or more rectifiers failed.
A qualified technician should open the unit and check
for burnt rectifiers and replace.
Porous or spongy
welds.
No gas; Little gas. Check presence of gas and supply line and pressure.
Clogged holes in Welding Torch head
diffuser.
Clear clogged holes using compressed air.
Solenoid valve blocked.
A qualified technician should open the unit and check
solenoid operation and electrical connection.
Poor quality gas or wire. Gas must be very dry. Use a moisture filter. Use a
different type of wire.
Gas supply does not
switch off.
Worn or dirty solenoid valve.
A qualified technician should open the unit and
dismantle valve, clean orifice and seating element.
Pressing Welding Torch
trigger produces no
result.
Faulty Welding Torch trigger;
Disconnected or broken control
cables.
A qualified technician should open the unit and
remove the torch connection plug and short-circuit
the poles. Check and repair control cables.
Overload controller defective.
A qualified technician should open the unit and
replace the overload controller.
Maintenance
Caution: Before performing any maintenance on the MIG Welder, unplug the power Line
Cord from the electrical outlet.
1. Periodically using compressed air, open the top and side panels and blow out all dust
from the interior.