Tweco VAF4 Transmig - Manual (Page 74)

TRANSMIG VAF4
SERVICE 4-10 Manual 0-5231
4.08 Troubleshooting
WArNING
ELECTRIC SHOCK can kill.
Follow all safety precautions.
Do not touch live electrical parts.
Turn OFF input power before servicing the machine unless otherwise noted.
Only qualified technicians are to service the machine.
WArNINGS
PC boards and their components are static sensitive devices.
Use static proof bags.
Use grounded wrist strap.
Only qualified personnel should test or handle these devices.
Use only genuine replacement parts.
FAULT CAUSE rEMEDY
1 Power On Indicator
light is not lit and
welding arc cannot be
established.
A
B
C
D
E
Switch on rear panel of Wirefeeder
is not turned ON.
Power Source is not turned ON.
19 Pin control cable is not
connected between the power
source and Wirefeeder.
Circuit Breaker/s on rear panel
is tripped (pops out). Refer to
Subsection 3.07 for further detail.
Faulty 19 Pin control cable
connecting power source and
Wirefeeder.
A
B
C
D
E
Turn switch on rear panel of
Wirefeeder to ON.
Turn power source ON and ensure it
is in the correct mode of operation.
Connect 19 Pin control cable
between the power source and
Wirefeeder.
Reset circuit breaker by pushing
it in. If it fails to reset have an
Accredited CIGWELD Service
Provider investigate the fault.
Repair or replace the 19 Pin control
cable.
2 Error Code is
displayed and yellow
fault indicator is lit
when Wirefeeder is
turned ON.
Error condition present. Refer to Error Codes and Remedies
Table in Subsection 4.05.
3 Power Indicator light
is not lit but welding
arc can be established.
Faulty Indicator light on display
PCB.
Have an Accredited CIGWELD
Service Provider investigate the
fault.
4 Power ON Indicator
light is lit but when the
torch trigger switch
is depressed nothing
happens.
A
B
Torch trigger switch leads are
disconnected.
Faulty trigger switch/lead.
A
B
Re connect Torch trigger switch
leads.
Repair or replace torch trigger lead.