OPERATOR’S MANUAL
·
MIG/MAG PULSE SERIES
- 24 -
8. TROUBLESHOOTING
WARNING
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 cut off from the electricity utility before
uncovering the welding machine.
The phenomena listed blow may be caused by the accessory and gas you use, the working
environment or the power supply condition. Try to improve the working environment to avoid
such occurrences.
Table 8.1 General troubleshooting
Phenomena
Cause
Solution
There is no display on the
control panel after the
machine is turned on.
The power supply is not well
connected.
Reconnect it.
Machine failure
Ask professionals for help.
The fan does not work or
works abnormally.
The 3-phase power cord is not
well connected.
Reconnect the 3-phase power
cord.
Phase failure
Solve the phase failure problem.
The mains voltage is overly low. Welding can be carried out after
the mains voltage recovers.
There is no no-load voltage
output, the protection LED
is on, and the meter
displays “Err 003”.
Air cooling/Water cooling switch
is switched to the wrong
position.
Switch the air cooling/water
cooling switch to the correct
position.
The water circuit fails.
Eliminate the water circuit
failure problem.
There is no no-load voltage
output, the protection LED
is on, and the meter
displays “Err 002”.
Overheating protection
It can recover automatically
after the machine is cooled.
There is no no-load voltage
output, the protection LED
is on, and the meter
displays “Err 001”.
The mains voltage is overly low. Welding can be carried out after
the mains voltage recovers.
The mains voltage is overly high. Disconnect the power supply with
the machine, and reconnect it
after
the
mains
voltage
recovers.
Auxiliary power fails.
Replace the fault circuit board
of the auxiliary power.
There is no no-load voltage
output, the protection LED
is on, and the meter
displays “Err 000”.
Overcurrent or damage of power
parts
Restart the machine. If
overcurrent problem still
exists, contact the service
center of our company.
Summary of Contents for MIG 350P
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