１６
3.The contact tip is blocked
by spatter;
4.The wire reel slog is
abraded;
5.The wire feeding pipe of
torch is blocked;
6.The
torch
cable
is
excessive bended;
5.Clean the dirty or dust in wire
feeding pipe by dry compressed air
or replace it with a new one;
6.Make the bending diameter of
torch cable larger than 300mm;
4.Welding machine do not
work, the over heating
indicator lights
1.The
environment
temperature is too high;
2.There
is
something
wrong with the cooling
fan;
3.The temperature relay is
damaged;
1.Make welding machine rest for a
moment;
2.Check the power of cooling fan or
replace cooling fan;
3.Replace the temperature relay;
5.The gas heater frosts
1.Poor contact on heater
plug seat;
2.Open circuit on heater
resistance wire;
1.Check the plug and socket of
heater;
2.Repair or replace heater;
6.Press torch switch, the
wire feeding wheel do not
move or there is no
welding current
1.Open circuit on welding
torch cable;
2.The wire feeding motor
is damaged;
3.The PCB is damaged;
1.Check the control cable of welding
torch;
2.Repair the wire feeding motor or
replace it with a new one;
3.Repair or replace PCB;
7.There are too many air
holes on welding seam;
1.CO
2
gas is not pure;
2.The gas flow is not
enough;
3.There is grease dirt or
rust on welding seam;
4.The wind in the welding
place is too heavy;
5.CO
2
gas circuit is blocked
or blab;
6.Gas
valve
doesn’t
actuate;
7.Deformation on nozzle;
1.Use high purity CO
2
gas;
2.Adjust the gas flow;
3.Eliminate the grease dirt or rust
on welding seam;
4.Do something to reduce the wind
in welding place;
5.Check the gas circuit, dredge it or
block it;
6.Replace the nozzle of welding
torch;
8.There is too much spatter
or the welding current is
not stable
1.Open circuit on three
phase power;
2.Wrong welding standard;
3.Bad
electrode
wire
quality;
4.There is grease dirt or
rust on work piece or
electrode wire;
5.The distribution voltage
fluctuates heavily;
6.The electrode wire sticks
out too long;
7.The diameter of wire slot
is not same as electrode
wire;
8.Something wrong with
1.Check three phase supply power,
make sure supply voltage fit the
required voltage;
2.Adjust the welding standard;
3.Replace electrode wire;
4.Clean the grease dirt or rust;
5.Make sure the fluctuation range of
distribution voltage is in 380
VAC±15%;
6.The stick out length should be 10
times more than wire diameter;
7.Replace the wire slot;
8.Use high purity gas;
9.Replace contact tip;
10.Clean the wire feeding pipe;
11.Fasten the ground wire;
