arcweld 200i-ST DV - TROUBLESHOOTING COMMON PROBLEMS

TROUBLESHOOTING
MAINTENANCE AND TROUBLESHOOTING
D-3 D-3
Turn on the power source, and fan
works, but the power light is not on.
Turn on the power source, and the
power light is on, but fan doesn’t
work.
Turn on the power source, and the
power light is not on, and fan doesn’t
work.
The power light damaged or connection is not
good.
Overvoltage (Input voltage is too much or not).
Welding cable is not connected with the two
output of the welder.
The plug loosen or connect not well.
SMAW/GTAW welding selection is wrong.
The welding current potentiometer in the front
panel connection not so good or damaged.
Power PCB failures.
Clear out.
Test and repair the inside circuit of power PCB
Change fan motor.
Check whether there is input voltage.
Check input voltage.
Check the front PCB and power PCB.
Check the earth clamp.
Check and tighten the plug.
Check and clear out.
Select the SMAW weding mode.
Repair or change the potentiometer.
Increase the welding current.
Use the shelter from airow.
Adjust the electrode angle.
Change the electrode.
Use the short arc operation.
Increase the welding current.
The fan motor damaged.
The motor power is faulty.
No no-load voltage output.
Arc blow.
The alarm light is on.
Arc break during welding.
No current output in the welding.
Not easy to start arc in the welding,
or easy to cause sticking.
The welding current can not be
adjusted.
The penetration of molten pool is not
enough(MMA).
No input voltage.
There is trouble inside the machine.
Welding cable is broken.
Earth cable is not connected or loosen.
Oil or dust covered the workpiece.
The welding current adjusted too low.
Airow disturbance.
The electrode eccentricity.
Magnetic effect.
Over current protection.
The welding current adjusted too low.
Over heat
protection.
Over
welding
current.
Working time
too long.
Unusual
current in
the main
circuit.
There is something in the fan
Test and repair the inside circuit of
power light on front PCB.
Repair or change power PCB.
Connect the welding cable to the
welder’s output.
Wrap, repair or change the welding
cable.
Incline the electrode to the opposite way
of the magnetic blow.
Reduce the welding current output.
Reduce the duty cycle (interval work).
Test and repair the main circuit of power
PCB.
Change the position of earth clamp
or add earth cable in the two side of
workpiece.
1
2
3
4
5
6
7
8
9
10
11
Item
PROBLEMS(SYMPTOMS)
RECOMMENDED COURSE OF
ACTION
POSSIBLE CAUSE