18
Electropneumatic
value
is
broken
Repair or change the Electropneumatic
value
Control board is broken
Change or repair the control board
F6
Function is ok, but
no wire feeding
Cable connection is not good
Connect the cable
Motor is broken
Repair or change the motor
Control board is broken
Change or repair the control board
F7
current button can
not work
connection is not good or
broken
Connect the cable
Current button is broken
Change the button
Other
Contact seller
F8
Fan is not turning
or turning slowly
Input power lose phase
Check and get the normal input power
Power switch is broken
Change the power switch
Fan is broken
Change or repair the fan
Connection cable is broken or
lose
Check and repair
F9
No OCV
Overheat of internal machine
Change F2
Power switch is broken
Change the power switch
F10
Machine or cable
is over heating
“+”
、
“-”socket is
overheating
Torch power is too small
Change the bigger power torch
Cable is too small on diameter Change the suitable cable
Socket is loose
Remove the scale cinder and connect
the socket
F11
Power supply is
triping
power is off (more than 2
days)and get power on at first
time
It is not failure, main curicut get power
and triping, shall close the switch
During welding operation
Contact seller
