Operating Instructions and Parts Manual
MIG/STICK WELDER
15
Trouble shooting Chart
NO
Breakdown
Analysis
Solutions
Voltage is too high
(
≥
15%)
Voltage is too low
(
≤
15%)
Switch off power source; Check
the main supply; Restart welder
when power recovers to normal
state.
Poor ventilation lead
to over-heat
protection
Improve the ventilation condition.
Environment
temperature is too
high.
It will automatically recover when
the temperature lowers.
1
Yellow
Indicator is on
Using over the rated
duty-cycle.
It will automatically recover when
the temperature lowers.
Potentiometer not in
the proper status
Change potentiometer
Nozzle is blocked
up
Change nozzle
2
Wire feeding
motor don’t
work
Feed roller is loose
Increase tension
Switch broken
Replace the switch
Fan broken
Replace or repair the fan
3
Cooling Fan
not working or
turning very
slowly
Wire broken or
falling off
Repair the connection
Arc is not
stable and
splash is
large
Too large contact tip
makes the current
unsteady
Change the proper contact tip or
roller
