Lincoln Electric AIR VANTAGE 500 CUMMINS Operator's Manual page 35

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PROBLEMS
(SYMPTOMS)
Engine goes to low idle but does not stay at
low idle.
No welding output or auxiliary output.
Welder has some/ no output and no control.
Auxiliary output OK
No welding output. Auxiliary output OK.
No auxiliary power.
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.
_______________________________________________________________________________________ _______________________
TROUBLESHOOTING
POSSIBLE
CAUSE
FUNCTION PROBLEMS
1. Faulty Peripheral PCB, Pull Coil/Battery
PCB or Weld Control PCB.
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 potentiometer.
3. Faulty output control wiring.
4. Faulty Weld Control
Coil/Battery 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
Coil/Battery PCB or Chopper PCB.
1. GFCI Receptacle may have tripped.
Follow "GFCI Receptacle Testing and
Resetting Procedure"
MAINTENANCE section of this manual.
2. Open breakers may need to be reset.
3. Faulty receptacle.
4. Faulty auxiliary circuit wiring.
5. GFCI tripped.
CAUTION
AIR VANTAGE® 500 CUMMINS
RECOMMENDED
COURSE OF ACTION
PCB, Pull
PCB, Pull
in the
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
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