11
Symptom
Cause
Solution
Difficult to ignite the arc
The arc ignition current is too low or the arc
ignition time is too short.
Increase the arc ignition current or prolong the
arc starting time.
No arc can be started
Phase failure of the mains power supply or the
mains supply cable is not connected.
Solve the phase failure problem or reconnect the
mains supply cable.
Electrode sticking
The arc force current is too low.
Increase the arc force current
The fan does not work or it works abnormally.
The mains power supply or the mains supply
cable is not connected.
Reconnect the mains supply cable.
The fan does not work or it works abnormally.
Phase failure
Solve the phase failure problem.
The fan does not work or it works abnormally.
The mains voltage is too low.
Welding can be carried out after the mains
voltage recovers.
The no-load voltage is “0”, and the under voltage
LED is on.
The mains voltage is too low.
Welding can be carried out after the mains
voltage recovers.
The no-load voltage is “0”, and the under voltage
LED is on.
Auxiliary power fails.
Replace the fault circuit board of the auxiliary
power.
The no-load voltage is “0”, and the overheating
LED is on.
Over heating protection
It will recover automatically after the welding
machine is cooled.
The no-load voltage is “0”, and the over current
LED is on.
Over current or damage of power parts
Restart the machine. If over current problem still
exists, contact the service centre of your
distributor
The electrode holder becomes very hot.
The rated current of the electrode holder is lower
than its actual working current.
Replace it with a higher rated current holder.
Other malfunction
Contact the service centre of your distributor.
