SWEISS
WELD.COM
MAINTENANCE AND TROUBLESHOOTING
If there are some simple troubles of SKYARC One FX / 2050 welding machines, you can consult the
following overhauling chart:
18
S/N
Troubles
Reasons
Solutions
The power light damaged or Test and repair the inside
1
Turn on the power source, and fan works, connection is not good
circuit of power light Pr3
but the power light is not on.
Power PCB failures
Repair or change power PCB
Pr2
2
Turn on the power source, and the power There is something in the fan Clear out
light is on, but fan doesn’t work
The fan motor damaged
Change fan motor
No input voltage
Check whether there is input
voltage
3
Turn on the power source, and the power
light is not on, and fan doesn’t work
Overvoltage (Input voltage is Check input voltage
too much or not)
4
No no-load voltage output
There is trouble inside the Check the main circuit, Pr1
machine
and Pr2
Welding cable
is
not Connect the welding cable to
connected with the two
the welder’s output
output of the welder.
Welding cable is broken
Wrap, repair or change the
welding cable
5
No current output in the welding
Earth cable is not connected
Check the earth clamp
or loosen
The plug loosen or connect Check and tighten the plug
not well
Oil or
dust covered the
Check and clear out
workpiece
6
Not easy to start arc in the welding, or
easy to cause sticking
MMA/TIG welding selection is
Selecting the MMA welding
wrong
7
The arc is not stable in the welding The arc force is too small
Increase the arc force
process
The
welding
current
8
The welding current can not be
potentiometer in the front Repair or change
the
adjusted
panel connection not so potentiometer
good or damaged
The welding current adjusted Increase the welding current
too low
9
The penetration of molten pool is not
The arc force adjusted too
enough(MMA)
Increase the arc force
small
Airflow disturbance
Use the shelter from airflow
Adjust the electrode angle
The electrode eccentricity
Change the electrode
10
Arc blow
Incline the electrode to the
Magnetic effect
opposite way of the magnetic
blow
