§5 Welding trouble shooting
§5.1 MIG welding trouble shooting
The following chart addresses some of the common problems of MIG welding. In all cases of
equipment malfunction, the manufacturer’s recommendations should be strictly adhered to and
followed.
Wire feed speed set too high
Select lower wire feed speed
Select a lower voltage setting
select the correct polarity for the
wire being used - see machine
setup guide
Bring the torch closer to the work
Remove materials like paint,
grease, oil, and dirt, including mill
scale from base metal
Use clean dry rust free wire. Do
not lubricate the wire with oil,
grease etc
Inadequate gas flow or too much gas
flow
Check the gas is connected, check
hoses, gas valve and torch are not
restricted. Set the gas flow
between 6-12 l/min flow rate.
Check hoses and fittings for holes,
leaks Protect the welding zone
from wind and drafts
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