Hyundai HYMIG-200, User Manual

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HYUNDAI
11
MIG -160/200
9. Troubleshooting
Warning
Experimentation and careless maintenance may lead to more problems to the machine. This will make pro-
fessional diagnosis and repair more difficult. When the machine is open, there may be exposed connections
containing life-threatening voltages. Any direct or indirect touch will cause electric shock, and severe electric
shock will lead to death.
Common Malfunction Analysis and Solution:
Malfunction Cause and Solution
The overheating LED is on.
1. Check the welding current and welding time. Refer to the manual, and
operate according to the duty cycle requirement.
2. Check the running status of the fan when welding. If the fan does not
work, check if the power supply of the fan is 230V: If the power supply
is normal, check the fan; if the power supply is abnormal, check the
connecting cable of the power supply.
3. Replace the thermal switch if it is damaged.
The power LED is off, and there is no output current.
1. Check if the fan works. If it does not work, it indicates that the power
cord is not in good contact.
2. If the fan works, it indicates that the control PCB inside the machine fails.
There is no response when pushing the torch trigger, and the protection
LED is off.
1. Check if the gun trigger is in good contact.
2. Check if the welding torch is well connected to the European connector,
and check the control jack of the European connector.
3. The control PCB inside the machine fails.
When torch trigger is pressed, wire feeder works and gas comes out, but
there is no output current, and the protection LED is off.
1. Check the wire feeder for clogging or damage.
2. Check the contact tip of welding torch for clogging or damage.
3. The control PCB inside the machine fails.
There is output current when pushing the torch trigger to feed gas, but
the wire feeder does not feed wire.
1. Check if all cables are connected properly.
2. Output connectors are disconnected or damaged.
3. Control circuit might be faulty.
Welding can be carried out when pushing the torch trigger, but the
voltage cannot be adjusted.
1. Check if the voltage feedback wire inside the machine is in good
condition.
2. The control PCB inside the machine fails.