User Manual

21
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PROBLEM
POSSIBLE CAUSE POSSIBLE SOLUTION
Low output or non-penetrating
weld.
Weld parameters too low. Adjust welding parameters
Too long or improper extension cord. Use a proper extension cord (#12 AWG
wire or heavier, no longer than 25 ft.). See
“Extension Cords”, page 11.
Wrong type or size wire. Use 0.030” (0.8mm) wire. See “Selecting
the Welding Wire” (page 14). Use E71T-
GS self-shielding flux-core wire.
Poor ground connection or gun
connection.
Reposition clamp and check cable to
clamp connection.
Check connection of ground cable and
gun.
Wrong size or worn contact tip. Use 0.030-inch (0.8mm) contact tip with
the 0.030-inch (0.8mm) wire. Replace
contact tip if worn.
Input power too low. Have a qualified electrician verify the
voltage at your outlet. If the voltage is
appropriate, verify that the circuit wiring is
sufficient for 20A.
Stick-out too long. Decrease stick-out (the amount the wire
extends past the contact tip).
Feed motor operates but wire
will not feed.
Insufficient feed drive roller pressure. Replace wire feeding motor.
Burr on end of wire. Re-cut wire so it is square with no burr.
Liner blocked or damaged. Clear with compressed air or replace liner.
Wire is “bird-nesting” at the
drive roller or jamming.
Too much pressure on drive roller. Adjust the drive pressure. See “Installing
The Welding Wire”, page 14.
Contact tip is clogged or damaged. Replace contact tip.
Wire burns back to contact tip.
Wire feed speed is set too low for voltage
setting being used.
Increase wire feed speed (turn RIGHT
KNOB (5) clockwise).
Stick-out too short. Increase stick-out (the amount the wire
extends past the contact tip).
Wrong size contact tip. Use correct size contact tip.
Contact tip is clogged or damaged. Replace contact tip.
Ground clamp, ground cable,
and/or welding cable get hot.
Bad ground or loose ground connection. Check the connection of the ground clamp
and gun to the machine.
Check connection of the ground cable
to the ground clamp. Tighten cable
connection to ground clamp if needed.
Ensure the connection between the ground
clamp and workpiece is good and on
clean, bare (not painted or rusted) metal.
Gun nozzle arcs to work
surface.
Slag build-up inside nozzle or nozzle is
clogged.
Clean or replace nozzle as needed.
Frequent circuit breaker trips.
Machine is drawing too much amperage
due to use of larger size wire.
Use the smallest wire possible for this
welder. 0.030-inch wire is strongly
recommended.
Machine is not the only piece of electrical
equipment on the circuit.
Make sure the welder is on a dedicated
circuit or is the only thing plugged on a
circuit.
Circuit breaker is incorrect/insufficient for
use with this machine.
Verify that the circuit breaker for the circuit
is a 20A time-delay (slow-blow) breaker. If
it is not, have a qualified electrician install
the proper breakers.