Power Fist SMART TIG AC/DC-200P Manuel De L'utilisateur page 23

V4.1
TROUBLE SHOOTING
Contact Princess Auto Ltd. for a solution if the tool does not function properly or parts are missing. If unable to do so,
have a qualified technician service the tool.
Problem(s)
Turn on the power source
and the fan works, but the
power light does not turn
on.
Turn on the power source
and the power light is on
but the fan does not work.
Turn on the power source
and the power light is not
on and the fan doesn't
work.
No no-load
voltage output.
No current output in
the welding.
Not easy to start the arc in
the welding or it is easy to
cause sticking.
The arc is not stable in the
welding process.
The welding current cannot
be adjusted.
The penetration of the
molten pool is not enough
(MMA).
Arc blow.
The alarm light is on
(Overheat Protection)
Visit www.princessauto.com for more information
SMART TIG AC/DC-200P Inverter Welding Machine
Possible Cause(s)
1. The power light is damaged or the
connection is not good.
2. Power PCB failure.
1. There is something in the fan.
2. The fan motor is damaged.
1. No input voltage.
2. Overvoltage
1. There is a problem inside the
machine.
1. The welding cable is not connected
with the output of the welding unit.
2. The welding cable is broken.
3. The grounding cable is not
connected or is loose.
1. The plug is loose or not
connected well.
2. Oil or dust has covered the
workpiece.
3. MMA/TIG welding selection is
wrong.
1. The arc current is inadequate.
1. The welding current potentiometer
in the front panel connection is not
so good or damaged.
1. The welding current is adjusted too
low.
2. The arc current is inadequate.
1. Airflow disturbance.
2. The electrode is used awkwardly
or defective.
3. Magnetic effect.
1. Over welding current.
2. Working time is too long.
Suggested Solution(s)
1. Test and repair the inside circuit of the
power light.
2. Repair or replace the power PCB.
1. Clear out any obstruction.
2. Have the fan motor replaced.
1. Check whether there is input voltage.
2. Check the input voltage.
1. Have the machine service by a
qualified service technician.
1. Connect the welding cable to the
welding unit's output.
2. Have the welding cable replaced.
3. Check the ground clamp.
1. Check and tighten the plug.
2. Check the workpiece and clean.
3. Select MMA welding.
1. Increase the arc current.
1. Repair or replace the potentiometer.
1. Increase the welding current.
2. Increase the arc current.
1. Use a shelter to block the airflow.
2. Adjust the electrode angle.
3. Replace the electrode.
4. Incline the electrode to the opposite
way of the magnetic blow.
5. Change the position of the ground
clamp or connect the ground clamp to
the two sides of the workpiece.
6. Use the short arc operation.
1. Induce the welding current output.
2. Induce the duty cycle (take a break).
8560237
23