19
No
Failure
Failure reason
Solution
F3
Current and vol-
tage no display
Current and voltage display is
broken
Change the display
Loose connection
Check where is the loss connection and tighten it
Main control board is broken
Change the main control board
Other
Contact the seller
F4
When press the
torch button, the
torch is not on
Torch switch is broken
Change the torch switch
Cable connection is not con-
nected
Contact the cable
Control board is broken
Change or repair the control board
F5
No gas
Gas hose is blocked
Connect the gas
Gas hose is press
Check the gas flow
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 circuit get power and
triping, shall close the switch
During welding operation
Contact seller
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