13
Checking breakdown
Cautions:
The operators are supposed to have enough knowledge of electric-gas and
common sense of safety, and concerning certificates are needed. We suggest you contact us
before operation and meanwhile get permission
.
BREAKDOWN
POSSIBLE CAUSES
SOLUTION
1
.
No reflection after turn-on
1. No power supply or
short of phase
2. Power cable in break
circuit
3. Assistant power off in
the phase
1. Check the power supply.
2. Open the case to check the voltage
3. Contact the supplier or specialist.
2. The regulator indicates no
sound of releasing
electricity, no show of
breakdown.
1. Something wrong with
the switch
2. Releasing nozzle in
short circuit
3. Air-socket wrongly set
up
1. Use screw knife to make the two- cored
air socket short circuit.
2. Adjust the distance between
electric-releasing nozzles.
3. When using torch or foot switch, the
concerned plug should be in the two-cored
socket.
3. Have HF
electricity-releasing, but no
current output.
1. Earth cable not well
connected
2. Torch cable in short
circuit.
1. Check the earth cable.
2. Check or renew the torch.
4. Have current output, but
cannot adjust,
1. Hand-control and foot
switch in wrong place.
2. Potentiometer in the
foot switch broken.
1. When using foot switch, the exchange
switch should be in “on” place.
2. Renew the potentiometer.
5. Hand-control normal, while
foot switch abnormal.
1. Slight switch in foot
switch broken.
2. Sliding potentiometer in
the foot switch broken.
1. Renew the slight switch.
2. Renew 1K sliding potentiometer.
6. Abnormal pilot light on
1. Spontaneous
over-current protection.
2. Too much dust causes
short circuit.
3. Some parts in the
machine broken.
1. Turn off the machine, and restart after
the light on.
2. Open the case; use the compressed air to
clear the dust.
3. Contact professionals or suppliers.
7. Can not remove the
oxidized coating in
AL-welding
1. Choose the wrong
welding button.
2. Clear width too low.
3. Damage the MOSFET in
second inverter.
1. Choose AC button in AL welding.
2. Make clear width high or remove the
oxidized coating.
3. Contact professional.
8. Current normal, but no gas
out
1. Have sound of
electromagnetic valve
a. Gas nozzle blocked up
b. gas hose broken
2. No sound of
electromagnetic valve
a. Valve damaged
b. Valve-controlled circuit
in trouble
a.
Clear the blockings.
b.
Repair and change Tig torch
a. Change the valve.
b. Ask professional to repair the board.
9. Tungsten terribly damaged
Clear width adjust too
much
Adjust the clear width in counterclockwise
10. Earth cable too hot
Earth cable not well
connected
Better tie the cable screw to the work table
If you still can not solve the problem after consulting the above table, then please contact the
sales agency or concerning department.