77
78
Nr.
Troubles
Solution
Reasons
7
8
Turn on the power
source ,power
indicator is lit,
gas flows, wire
roller cannot feed
Turn on the power
source ,power
indicator is lit ,gas
flows, wire feeding,
no arc igniting
The wire roller is wrong installed
Check and change it
Check and sort it out
Check and connect correctly
Check and install correctly
Consult the dealer or the
manufacturer
Change to the same size of
the needed parts
The wire roller is twined
Check the welding circuit is correct
Control board is broken
Checking if the wire checking
indicator is on
Wire feeding board is broken or
the control board is broken
The min value displayed isn't
accordant with the actual value
The max value displayed isn't
accordant with the actual value
Control board is broken
Correct properly
Check and connect correctly
Consult the dealer or the
manufacturer
The mig torch is not correctly
fitted to machine
The wire is not correctly through
the inlet wire guide
The size of the groove ,wire and
torch tip are not from the same size
Pressure roller arm is fitted firmly
10
11
13
14
Change it
Close the wire checking function
Consult the dealer or the
manufacturer
Adjust potentiometer Imin on
the control board
Adjust potentiometer Imax on
the control board
Close it
Remove it
Gas always flows
Without triggering
the mig torch but
the wire roller
feeding wire
automatically
The welding
current displayed
isn't accordant
with the actual
value
The penetration
of molten pool is
not enough
Something is in the valve
The arc is too long in the welding
process
The welding current is adjusted
too low
Increase the welding current
Adjust the distance from torch
to work piece
Use the suitable length from
manufacturer
The power cable or the welding
cable is too long
Electromagnetic valve is damaged
If the gas checking function is selected
9
Gas cylinder is close or gas
pressure is low
Something is in the valve
Open or change the gas cylinder
Remove it
Change it
Change it
Pressure too high or air regulator is
broken
Check gas
No gas flow (TIG)
Electromagnetic valve is damaged
Air tube is brocken
12
Checking if the electorde stick to
the work piece that the anti-stick
function is on
Repair or change it
The welding
current cannot
be adjusted
Control board is broken
Shut off the power when changing the torch
Separate the electrode and
work piece
16
17
Tig electrode melts
when welding
Arc flutters during
Tig welding
Tungsten electrode is too big for
the welding current
Check the earth clamp position
on the work piece
Tig torch is connected to the
positive terminal
Connect the tig torch to
negative terminal
Select the correct size of
tungsten electrode
Adjust the position of earth
clamp
Nr.
Troubles
Solution
Reasons
15
Over-heat protection ,too much
welding current
Reduce the welding current
Reduce the welding time
Over-heat protection ,working too
much time
Over-current protection, current in
the main circuit is out of control
Check and repair main circuit
and drive board
Thermal overload
indicator light is on
Check the power supply
Change the fan
Input voltage is too low
Fan is broken
Troubleshooting
Troubleshooting
MIG SERIES EQUIPMENT MIG SERIES EQUIPMENT
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