Weldclass WeldForce WF-255MST - Page 55

WF-255MST
© Weldclass 2019 | E.&O.E. | Edition 2.2 55
Troubleshooting – MIG Weld Quality
Fault
Cause
Remedy
Cold weld puddle
Loose welding cable connection.
Check all welding cable
connections
Low power supply voltage.
Contact supply authority
Arc does not have a crisp
sound that short arc
exhibits when the wire feed
speed and voltage are
adjusted correctly
The MIG torch has been connected
to the wrong voltage polarity on the
front panel.
Connect the MIG torch to the
positive (+) welding terminal for
solid wires and negative (-)
welding terminal for gasless
wires.
Refer to the wire manufacturer
for the correct polarity.
Table 16