Lincoln Electric 500 - Manual (Page 37)

E-4 TROUBLESHOOTING E-4
VANTAGE 500 CUMMINS
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Engine goes to low idle but does not
stay at low idle.
No welding output or auxiliary out-
put.
Welder has some/ no output and no
control. Auxiliary output OK
No welding output. Auxiliary output
OK.
No auxiliary power.
1. Weld Control PCB or electronic
governor controller.
1. Broken lead in rotor circuit.
2. Faulty field diode module.
3. Faulty Weld Control PCB.
4. Faulty rotor.
1. Faulty remote kit.
2. Faulty output control potentiome-
ter.
3. Faulty output control wiring.
4. Faulty Weld Control PCB or
Chopper PCB.
1. WELDING TERMINALS switch in
wrong position, be sure switch is
in WELDING TERMINALS
ALWAYS ON position.
2. Faulty Weld Control PCB or
Chopper PCB.
1. GFCI Receptacle may have
tripped. Follow “GFCI Receptacle
Testing and Resetting Procedure”
in the MAINTENANCE section of
this manual.
2. Open breakers may need to be
reset.
3. Faulty receptacle.
4. Faulty auxiliary circuit wiring.
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.
FUNCTION PROBLEMS