TROUBLESHOOTING and MAINTENANCE
Operating Manual No: PWOM-215/250MP-001
Page 36
© 2018 Global Welding LLC
Description
Possible Cause
Remedy
9.
Drive Roll rotates but welding weld does
not feed out of the MIG Gun.
A
Insufficient Drive Roll pressure.
B
Incorrect Drive Roll size.
C
Excessive wire spool brake tension.
D
Wrong Liner or blocked Liner.
E
Welding Wire bird nest in the wire feed
system.
F
Welding wire has fused (burnt back) onto
the contact tip.
A
Increase pressure on the Drive Roll by turning
Pressure Device clockwise.
B
Fit a suit size and type of Drive Roll that suits
the welding wire.
C
Reduce wire spool brake tension by turning
the Tension Screw counterclockwise.
D
Replace the Liner to suit the Welding Wire.
E
See No.
10 Welding Wire bird nest
.
F
See No.
11 Burnt Back onto the contact tip.
10.
Welding Wire bird nest.
A
Excessive Drive Roll pressure
B
Incorrect or blocked Liner.
C
Incorrect contact tip size or contact tip
overheating.
D
MIG Gun cable kinked.
A
Decrease pressure on the Drive Roll by turn-
ing Pres-sure Device counter clockwise.
B
Replace Liner to suit Welding Wire.
C
Replace contact tip to suit Welding Wire.
D
Straighten out MIG Gun cable.
11.
Burnt Back onto the contact tip.
A
Burn Back control is not set correctly.
B
Improper stick out.
C
Erratic wire feed.
D
Incorrect or blocked liner.
E
Contact tip overheating.
F
MIG Gun cable kinked.
A
Adjust the Burn Back control.
B
Increase Stick-Out length to 3/8”-1/2”.
C
See No.
12 Erratic Wire Feeding or Welding
Arc
.
D
Replace the Liner to suit the Welding Wire.
E
Replace contact tip.
F
Straighten out MIG Gun cable.
12.
Erratic Wire Feeding or Welding Arc
A
Excessive Drive Roll pressure.
B
Incorrect Drive Roll size.
C
Worn Drive Roll.
D
Incorrect or blocked liner
E
Gaps at liner/contact tip junction or wire
guide junctions.
F
Incorrect or worn contact tip size or
contact tip overheating.
G
Spatter adhesion on end of contact tip.
H
MIG Gun cable kinked.
I
Poor Ground Clamp or cable connections.
J
Weld joint area dirty.
A
Decrease pressure on the Drive Roll by turn-
ing Pres-sure Device counter clockwise.
B
Fit a suit size and type of Drive Roll that suits
the welding wire.
C
Replace the Drive Roll that suits the welding
wire.
D
Replace the Liner to suit the Welding Wire.
E
Reduce the gaps at liner/contact tip junction
or wire guide junctions.
F
Replace contact tip to suit Welding Wire.
G
Replace contact tip to suit Welding Wire.
H
Straighten out MIG Gun cable.
I
Inspect Ground Clamp/cable connections for
discoloration or damage then repair/replace.
J
Clean joint before welding.
13.
Over Temperature ERROR
displayed on
screen
Power Source duty cycle ratings have been
exceeded by operator welding too long.
Stop welding but leave the Power Source
switched ON so it cools down until the
Over
Temperature ERROR
display disappears.
14.
Over Current ERROR
displayed on
screen
The micro controller has detected excessive
Mains Current in Power Source.
Stop welding and switch the Power Source OFF
then ON. If the
ERROR
clears then continue
welding. If the
ERROR
persists have an approved
Service Provider inspect then repair the welder.
Refer to SECTION 7 – PRO-TEC WARRANTY
POLICY
.
