Vector Welding C-Series Operating Instructions Manual page 20

AC/DC SERIES EQUIPMENT
Troubleshooting
3.1 Troubleshooting
◆Before arc welding machines are dispatched from the factory, they have already been
debugged accurately. So forbid anyone who is not authorized by us to do any change to
the equipment!
◆Maintenance course must be operated carefully. If any wire becomes flexible or is
misplaced, it maybe potential danger to user!
◆Only professional maintenance personal who is authorized by us could overhaul the
machine!
◆Guarantee to shut off the arc welding machine's power before turn on the outline of
the equipment!
◆If there is any problem and has no the authorized professional maintenance personal,
please contact local agent or the branch company!
If there are some simple troubles of V-series welding machine, you can consult the
following overhauling chart:
Nr. Troubles Reasons
Turn on the power Fan is broken
source, power
There is something in the fan
1
indicator is lit, fan
is not working. The start capacitor of fan damaged
The power light damaged or
Turn on the
connection is not good
power source,
2 fan is working,
The power board is broken
power indicator
is not lit Display panel is broken
The power cable connected not
good
The power cable is broken
Turn on the power
Power on switch is damaged
source, fan is not
3
working ,power
The light of the power indicator is
indicator is not lit
broken and the problems
mentioned in Nr. 2
The power board is broken
Turn on the power
Control board is broken
source, power
indicator is lit, fan
4 1 inverter circuit damaged s t
is working, there
is no welding
2 feedback circuit is fault n d
output.
The display panel is damaged
The number of the
5 display is not
intact Digital tube is broken
30
Solution
Change fan
Clean it
Change capacitor
Change the power light
Change it
Change it
Connect correctly
Repair or change it
Change it
Change the light of the power
indicator or refer to the solution
in Nr. 2
Change it
Change it
Replace it
Change it
Change the display panel
Change it
AC/DC SERIES EQUIPMENT
Nr. Troubles Reasons
If the overheat indicator is on
No no-load
The main circuit is broken
voltage output
6
(MMA)
The machine is broken
The welding cable is not connected
with the two output if the welder
The welding cable is damaged
Arc can not be
The earth cable connected unstably
ignited (TIG) ,
The welding cable is too long
there is spark
7
on the HF
There is oil or dust on the workpiece
igniting board
The distance between tungsten
electrode and workpiece is too long
There is no Argon flow or the
connection is poor
Input voltage not stable
The HF igniting board does not work
Arc can not be The distance between discharger is
ignited (TIG) , too short or too long
there is no spark
8
The malfunction of the welding gun
on the HF
switch
igniting board
No argon gas flow or the air tube
connect not good
Check if the function selected MMA Change the function to TIG
Turn on the Check the HF funtion is selected
power source,
HF board is broken
everything is
9
normal , but no
Earth clamp connect not stable
HF igniting
No argon gas flow or the air tube
connect not good
Gas cylinder is close or gas
pressure is low
Something is in the valve
No gas flow (TIG) Electromagnetic valve is damaged
10
Air tube is brocken
Pressure too high or air regulator is
broken
Something is in the valve
Gas always flows
11
Electromagnetic valve is damaged
Troubleshooting
Solution
Wait a few minutes, the machine
can be operated normal
Check and repair
Consult the dealer or the
manufacturer
Connect the welding cable to
the welder's output
Repair or change it
Check the earth cable
Use an appropriate welding cable
Check and remove it
Reduce the distance
(about 3mm ,less than 5mm)
Check and reconnect
Check the power supply
Repair or change it
Adjust the distance (about 0.8mm)
Check the welding torch switch,
control cable and aero socket.
Check and reconnect
Select the HF funtion
Repair or change it
Check the earth clamp
Check and reconnect
Open or change the gas cylinder
Remove it
Change it
Change it
Check gas
Remove it
Change it
31