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Item 63621
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ONTROLS
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problem
possible causes
Likely Solutions
Welder Does Not
Function When
Switched On
1. Tripped thermal protection device.
2. Circuit supplies insufficient input voltage or
amperage.
3. Faulty or improperly connected Trigger.
4. Machine is in low- or
over-voltage protection.
5. Machine is in the incorrect mode.
1. If a warning screen appears in the LCD Display
window, Welder may have overheated and shut
down. Stop and wait with the Power Switch ON
for the Welder to cool. The Welder automatically
returns to service after cooling off. Reduce
duration or frequency of welding periods to
help reduce wear on the Welder. Refer to
Duty Cycle (Duration of Use)
on page 19.
2. Verify that the circuit is designed to supply the
required input voltage and amperage as detailed
on the Specifications table. If a warning screen
appears in the LCD Display window, check the
input voltage to ensure it is within specified range.
3. Ensure the gun connection is properly
seated on machine. Qualified technician
must check and secure/replace Trigger.
4. Check input voltage and ensure it falls within
the specified range. If input voltage is correct,
press Reset Button on back of machine.
5. Ensure the correct process has been selected.
LCD Display
Does Not Light
When Welder is
Switched On
1. Unit is not connected to outlet properly.
2. Outlet is unpowered.
3. Plug does not have correct rating.
4. Circuit breaker has tripped due
to high input amperage.
5. Input Power Cord is not seated properly.
1. Verify the voltage at the outlet and
the connection to the outlet.
2.
Check circuit breaker/GFCI devices;
if any are tripped, determine and
remedy cause before resetting.
3. Make sure installed plug is correct rating.
See
Specifications
on page 7.
4. Press Reset Button on back of
machine to reset circuit breaker.
5. Ensure the twist lock input Power
Cord is fully secured.
Wire Feeds, but Arc
Does Not Ignite
1. Improper ground connection.
2. Improperly sized Contact Tip.
3. Excessively worn Contact Tip.
4. Dirty Contact Tip.
1. Make certain that the workpiece is contacted
properly by the Ground Clamp and that
the workpiece is properly cleaned near the
ground clamp and the welding location.
2. Verify that Contact Tip is the proper size
for welding wire. If needed, replace
Contact Tip with proper size and type.
3. Check that the hole in the tip is not
deformed or enlarged. If needed, replace
Contact Tip with proper size and type.
4. Properly clean Contact Tip.
Porosity in the
Weld Metal
1. Shielding gas bottle is empty.
2. Not enough or too much shielding gas.
3. Dirty workpiece.
4. Gun is being used too far
away from workpiece.
5. Polarity is incorrect for the application.
6. Dirty welding wire is introducing
contamination into the weld.
1. Check gas bottle and replenish as necessary.
2. Check gas regulator to ensure proper flow.
3. Clean workpiece down to bare metal.
4. Check CTWD (contact tip to work
distance) for the proper procedure.
5. Check the polarity and ensure it is DCEP
for MIG and DCEN for Flux-Cored.
6. Make certain that welding wire is clean
and free of rust and residues.
Follow all safety precautions whenever diagnosing or servicing the equipment.
