The following operation requires sufficient professional knowledge on
electric aspect and comprehensive safety knowledge. Operators should be
holders of valid qualification certificates which can prove their skills and
knowledge. Make sure the input cable of the machine is disconnected from
the electricity utility before uncovering the welding machine.
dilapidation, rewrap it or replace it.
6) Put the machine into the original packing in dry location if it is not to be used for a long time.
13. FAILURE AND TROUBLESHOOTING
1) Common Failure Analysis and Troubleshooting:
Common failure and troubleshooting
Turn on the
machine, there is
no current
● Power is not well
connected
● Welder fails
● Reconnect power
● Ask professional personnel for help
Fan does not
work during
welding
●Fan power cord is not well
connected
● Auxiliary power supply fails
● Reconnect fan power cord
● Ask professional personnel for help
● Over-current protection for
welder
● Restart the welder, if problem cannot be solved,
contact maintenance personnel
●Short-circuit current
protection
● Restart the welder, if problem cannot be solved,
contact maintenance personnel
● Power limitation protection
● Restart the welder, if problem cannot be solved,
contact maintenance personnel
●Over-current protection for
wire feeder
● Restart the welder, if problem cannot be solved,
contact maintenance personnel
● It gets to normal after cooling the welder
GMAW (MIG/MAG) failure and troubleshooting
There are no
response and
error code
after pressing
torch trigger
● Torch is not well connected to
wire feeder
● Torch trigger fails
● Reconnect torch and wire feeder
● Repair or replace the torch
There are gas
output and
wire feeding
after pressing
torch trigger
but no current
● Ground wire is not well
connected to workpiece
● Wire feeding unit or torch fails
● Reconnect ground wire and workpiece
● Repair the wire feeding unit or torch
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