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AIR VANTAGE
®
800 (AU) CUMMINS
PROBLEMS
(SYMPTOMS)
Welder has some/ no output and no control.
Auxiliary output OK.
No welding output. Auxiliary output OK.
No auxiliary power.
Welder load drops off.
Wire feeder does not work when control cable is
connected to 14 pin connector.
No output in Pipe Mode.
VRD Lights don't light up.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
1. Faulty remote kit.
2. Faulty output control potentiometer.
3. Faulty output control wiring.
4. Faulty Weld Control PCB, Engine Control Units 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, Engine Control Units or
Chopper PCB.
1. RCD may have tripped.
2. Open breakers may need to be reset.
3. Faulty receptacle.
4. Faulty auxiliary circuit wiring.
1. Check thermostat on each of the chopper mod-
ule.
2. Check fan operation in power electronic compo-
nent.
1. Wire Feeder Power circuit breaker open. Check
42V or 115V breaker and reset if tripped.
2. Faulty control cable. Repair or replace cable.
3. Faulty wire feeder. Replace wire feeder.
1. Make sure VRD ON/OFF toggle switch is in the
"OFF" position.
2. Poor work lead connection to work. Make sure
work clamp is tightly connected to clean base
metal.
3. "Weld Terminals" switch in wrong position.
Place switch in "Weld Terminals On" position
when welding without control cable.
4. Faulty PC board or welder alternator.
1. Ensure VRD ON/OFF switch is in the "ON" posi-
tion.
2. If light is burned out, replace both VRD lights.
3. Faulty OCV indicator PC board.
E-4
TROUBLESHOOTING
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas of mis-
adjustment have been checked and the
problem persists, Contact your local
Lincoln Authorized Field Service Facility.
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