34
other
workpiece, reopen the
power supply.
E34
Wire feeder given
abnormal
1) the control cables break
2) wire feeder current, voltage
potentiometer given bad.
1)check cables
2)replace it
E30
Wire feeder overload
1) the wire is used up
2) the wire feed motor over-
current, stuck or damage
1)replace new wire
2)check motor
E15
Startup abnormal
1) welding torch switch is in a
closed state when startup
2) the no-load voltage
abnormality.
3
）
current output.
4
）
wire feeding.
5
）
plenum.
1) turn on torch switch
2) Check if there is a short
circuit output cable.
E17
Output current is too
large
1
) overcurrent.
2) current sensor fault.
3) the signal line is
disconnected.
4) the main control board fault
1) Check the main circuit
power device.
2) restart power supply.
3)check signal line
4)change board
E18
Output voltage
abnormal
1) voltage feedback line break.
2) main control board failure.
1)check feedback line
2)change board
E19
Overheating
protection
1) welding machine internal
overheating (beyond the rated
load duration rate ,front and
back vents blocked).
2) temperature relay failure.
3) signal line failure.
4) the main control board
failure.
1) don't close the power
source, let the welding
machine cool naturally,
inspect vents if blocked.
2)change it
3)check signal line
4)change main board
E10
Welding
torch
switch abnormal
press on the torch switch, still
not welding
Loosen the torch switch
E88
stop
Wire feeding board failure
Check or change the board
