Ryobi MIG-180 - Mig Troubleshooting

25
MIG TROUBLESHOOTING
P
roblem Possible Cause Remedy
No weld current Blown rectifier. Replace rectifier.
(
plug fuse blowing).
No weld current Poor earth clamp connection. Check and clean up connections.
Break in earth lead. Replace earth lead.
Break in torch lead. Replace torch or lead.
Feed motor not working. Defective motor or defective gears. Replace.
Roller rotates but no wire Incorrect roller adjustment. Adjust pressure arm.
feed or uneven wire feed. Deformed welding wire. Check roller tension.
Dirt in torch liner. Clean or replace.
Shroud or contact tip faulty. Replace.
Unstable arc. Incorrect settings. Check settings.
Impurities in the weld area. Clean the weld area prior to
welding.
Faulty shroud. Replace.
Weld current interrupted. Thermal trip has operated. Allow the welder to cool down.
Porous weld. Rusty or dirty joints. Clean the weld area prior to
welding.
Problem with the gas flow. Check the regulator, and gas
hoses.
Torch at wrong angle or too far Check the contact tip. Use a
from the workpiece. windbreak when welding outside.
Irregular weld cap. Torch incorrectly held. Weld with the torch at the correct
distance and angle to the
workpiece.
Wire weaving in weld pool. Check roller tension.
Narrow raised weld cap. Weld speed too fast / weld current Adjust settings. Move the torch
too low. slower.
Weld cap too wide Weld speed too slow / weld current Adjust settings. Move the torch
too high. faster.
Arc too long Move the torch closer to the
workpiece.
Poor penetration. Weld current too low. Adjust settings.
Arc too long Move the torch closer to the
workpiece.
Excessive penetration. Weld speed too slow / weld current Adjust settings.
too high.
Torch is too far from the workpiece. Weld with the torch at the correct
distance and angle to the
workpiece.