E-6
TROUBLESHOOTING
E-6
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 Authorized Field Service Facility
for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
The welding arc is “cold.” The weld-
ing arc is not stable or is not satis-
factory. the engine runs normally.
The auxiliary power is normal.
No output in Pipe Mode.
VRD Lights don’t light up.
1. M a k e s u r e t h e M O D E s e l e c t o r
switch is in the correct position for
the process being used. (For exam-
ple, CV-WIRE, PIPE, CC-STICK.)
2. Make sure the electrode (wire, gas,
voltage, current etc.) is correct for
the process being used.
3. Check for loose or faulty connec-
tions at the weld output terminals
and welding cable connections.
4. The welding cables may be too long
or coiled, causing an excessive
voltage drop.
5. Faulty Control Board.
1. Make sure VRD ON/OFF toggle
switch is in the “OFF” position.
2. P o o r w o r k l e a d c o n n e c t i o n t o
work. Make sure work clamp is
tightly connected to clean base
metal.
3. "Weld Terminals" switch in wrong
position. Place switch in "Weld
T e r m i n a l s O n " p o s i t i o n w h e n
welding without control cable.
4. Faulty PC board or welder alterna-
tor.
1. Ensure VRD ON/OFF switch is in
the “ON” position.
2. If light is burned out, replace both
VRD lights.
3. Faulty OCV indicator PC board.
If all recommended possible areas of
misadjustment have been checked
and the problem persists,
Contact
your local Authorized Field
Service Facility.
DX450 (RED-D-ARC)
Summary of Contents for RED-D-ARC DX450
Page 38: ...F 1 DIAGRAMS F 1 DX450 RED D ARC ...
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Page 42: ...F 5 DIAGRAMS F 5 DX450 RED D ARC 2 9 03 ...
Page 43: ...F 6 DIAGRAMS F 6 DX450 RED D ARC ...
Page 46: ...NOTES DX450 RED D ARC ...
Page 47: ...NOTES DX450 RED D ARC ...
