Lincoln Electric VANTAGE 400 Operator's Manual page 36

VANTAGE 400
PROBLEMS
(SYMPTOMS)
No welding power output.
Welder has output but no control.
Wire feeder does not work when control
cable is connected to 14 pin connector.
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.
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
1. Poor work lead connection to work. Make
sure work clamp is tightly connected to
clean base metal.
2. "Weld Terminals" switch in wrong posi-
tion. Place switch in "Weld Terminals On"
position when welding without control
cable.
3. Faulty PC board or welder alternator.
1. Poor remote/control cable connection to
6-pin or 14-pin connector. Check connec-
tions.
2. Faulty remote cable or faulty wire feeder
or wire feeder cable. Replace if neces-
sary.
3. Faulty control potentiometer or PC board.
1. Wire Feeder Power circuit breaker open.
Check 42V and 120V beakers and reset if
tripped.
2. Faulty control cable. Repair or replace
cable.
3. Faulty wire feeder. Replace wire feeder.
1. Open circuit breakers. Reset
breakers. If breakers keep tripping
reduce power draw.
2. GFCI may have tripped.
Follow "GFCI Testing and
Resetting Procedure" in the MAIN-
TENANCE section of this manual.
3. Faulty connections to auxiliary recepta-
cles. Check connections.
4. Faulty PC board or welder alternator.
E-5
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.
CAUTION
TROUBLE SHOOTING
RECOMMENDED