80
M1.3.TIG200PAC.NLFREN 21052019
EN
12 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
disconnected from the electricity utility before uncovering the welding machine�
12�1 Common malfunction analysis and solutions
The failures listed below may be related to your accessories, gas, working environment, power supply conditions. Please try to
improve the above so that to avoid similar failures.
Table 12-1 MMA common malfunction solutions
Malfunction phenomena
Cause analysis
Solutions
Fan doesn’t work or has abnormal
revolving speed after power on
Temperature is too low or fan is
broken
When the temperature is too low, please
operate welder for a while and wait till the
internal temperature is increased. If the fan
is still not working, change the fan
M
M
A
Difficult arc ignition
Low arc ignition current or short
ignition time
Adjust (increase) the arc ignition current and
time
Over arc ignition or over-size
molten pool
Ignition current is too big or
ignition time is too long
Adjust (decrease) the arc ignition current
and time
Abnormal arc
Poor power cable connection
Make sure the well connection of power
cable
Sticking electrode
Low arc force current
Adjust(increase) the arc force current
Burning electrode holder
Electrode holder rated current is
too low
Change a larger current electrode holder
Easy arc breaking
Network voltage is too low
Please operate when network voltage is
back to normal
Other failures
Please contact the technical service of your
dealer
Table 12-2 TIG common malfunction solutions
Malfunction phenomena
Cause analysis
Solutions
Fan doesn’t work or has abnormal
revolving speed after power on
Temperature is too low or fan is
broken
When the temperature is too low, please
operate welder for a while and wait till the
internal temperature is increased; if the fan
is still not working, change the fan
T
I
G
No output current when torch
switch is on
Some TIG function allows welding
ending while torch switch is still on
Release torch switch and restart welding
Welding circuit disconnection
Check the circuit and reconnect
When it’s under HF arc
ignition mode, no arc ignition
when turn on the torch switch
Poor connection of welding torch
Reconnect and tighten the welding torch
Over-wide spark gap
Adjust the spark gap 3(about 0.8 mm)
Over burning of tungsten
electrode
Reverse connection of welding
torch and ground cable
Exchange the two plugs’ position
Clearing intensity is too big
Decrease the clearing intensity
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