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Troubleshooting

NOTE: When yellow tripped protection/alert indicator turns on, the possible causes are 1) tripped overheat protection; 2) short
circuit alert; 3) tripped overvoltage protection; 4) overcurrent alert; 5) MIG gun switch issue alert. Please refer to a qualified
electrician to check your welder.
Problem
Wire feed motor works
but no wire feeds.
Wire creates a bird's nest
during operation.
No arc while wire feeds.
Arc works but no wire
feeds.
Wire burns back to
contact tip.
Weak arc strength/non-
penetrating weld.
Difficult to start an arc.
Possible Cause
Insufficient pressure given to
the wire feed drive roll.
Incorrect drive roll size.
Damaged flux core gun or
damaged/blocked wire inlet
guide tube.
Clogged or damaged contact tip.
Too much pressure on the drive
roll.
Loose ground clamp connection.
Insufficient pressure on the wire
feed drive roll.
No wire left on the wire spool.
Wire feed speed is too low.
Wrong size contact tip.
Clogged or damaged contact tip.
Long or improper extension
cord.
Input power is too low.
Poor ground clamp, torch or
electrode holder connection.
Wrong size or worn contact tip.
Wrong welding wire size or type.
Welding amperage is low.
Clogged contact tip.
Rotate the pressure arm adjustment knob clockwise to
increase the pressure on drive roll. See "Operation
Instruction – Setting Up the Welding Wire" (page 11) for
more details.
Replace the drive roll with the correct size.
Replace the flux core gun.
Clean the wire inlet guide tube with compressed air or
replace the wire inlet guide tube.
Clean the contact tip or replace with a new one.
Rotate the pressure arm adjustment knob
counterclockwise to decrease the pressure on drive roll.
See "Operation Instruction – Setting Up the Welding Wire"
(page 11) for more details.
Check and make sure the ground clamp is well attached to
the workpiece.
Rotate the pressure arm adjustment knob clockwise to
increase the pressure on drive roll. See "Operation
Instruction – Setting Up the Welding Wire" (page 11) for
more details.
Check whether the wire spool is used up. Replace with a
new one if used up.
Increase wire feed speed by rotating wire feed adjustment
knob clockwise.
Replace with a correct size contact tip.
Clean the clogged tip with a tip cleaner.
Replace the damaged tip.
Use a proper extension cord.
Verify your welder's output voltage and current. Ask a
qualified electrician for help if necessary.
Check connection of ground cable, torch or electrode
holder and make sure they are well connected.
Replace with the correct size contact tip or replace with a
new contact tip.
Recommended welding wires are 0.030/0.035 in. flux core
welding wire.
Increase welding amperage.
Clean or replace contact tip.
14
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100 695 8767

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