Vrd lights don’t light up, Troubleshooting & repair, Caution – Lincoln Electric VANTAGE 400 User Manual
Page 54
Observe Safety Guidelines detailed in the beginning of this manual.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
TROUBLESHOOTING & REPAIR
F-6
F-6
VANTAGE® 400
VRD lights don’t light up.
Ensure VRD ON/OFF switch is in
the “ON” position.
VRD light may be burned out,
replace both VRD lights.
Faulty VRD display P.C. Board.
Check connections at the VRD
ON/OFF switch.
Check the VRD on off switch for
proper?
See VRD functional description.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
OUTPUT PROBLEMS
No output in PIPE MODE.
Outputs normal in other modes.
Make sure VRD ON/OFF toggle
switch is in the off position.
Faulty CONTROL PC BOARD.
Faulty VRD display board.
Check the connections at the VRD
ON/OFF switch.
Check the VRD on off switch for
proper function/continuity.
See VRD functional description
No auxiliary power at one or more
receptacles or at the 14 pin
Amphenol.
Weld output is normal and the
engine operates normally.
Check for loose or faulty connec-
tions at the output receptacles or
14 pin amphenol.
Check for tripped circuit breaker
and/or tripped GFCI receptacles.
Perform the Stator Voltage Test.
Check the wiring between the aux-
iliary receptacle and the main sta-
tor.
The machine has low welding out-
put and low auxiliary output.
The engine RPM may be low.
The brushes may be sticking,
poorly seated or slip rings dirty.
Then engine high idle speed may
be low. Perform the Engine
Throttle Test (Electronic Idler).
Full load speed should be about
3500 RPM. Inspect and if neces-
sary service the brushed and slip
rings per the Brush and Slip Ring
Service.
Perform the Rotor Voltage Test.
Perform the Stator Voltage Test.