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F-5
TROUBLESHOOTING AND REPAIR
F-5
POWER WAVE 455/POWER FEED 10
TROUBLESHOOTING GUIDE
POWER WAVE
Observe all Safety Guidelines detailed throughout this manual.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
Major physical or electrical dam-
age is evident when the sheet
metal cover(s) are removed.
The machine is dead -- no output --
no fan -- no LEDs.
The main input fuses (or breaker)
repeatedly fail.
1. Contact your local authorized
Lincoln Electric Field Service
Facility for technical assistance.
1. Make certain the input power
switch SW1 is in the ON posi-
tion.
2. Check the main input fuses. If
open, replace.
3. Check the 6 amp circuit breaker
(CB4). Reset if tripped.
4. Make certain the reconnect
panel is configured correctly for
the applied input voltage.
1. Make certain the fuses or break-
ers are properly sized.
2. Make certain the reconnect
panel is configured properly for
the applied input voltage.
3. The welding procedure may be
drawing too much input current
or the duty cycle may be too
high. Reduce the welding cur-
rent and/or reduce the duty
cycle.
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 216-383-2531 or 1-800-833-9353.
-----------------------------------------------------------------------------------------------------------------------------
1. Contact the Lincoln Electric
Service Department, 216-383-
2531 or 1-800-833-9353
(WELD).
1. Check the input power switch
(SW1) for proper operation.
Also check the associated leads
for loose or faulty connections.
See wiring diagram.
2. Check CB4 for proper operation.
3. Perform the
T1 Auxiliary
Transformer Test.
4. Perform the
Power Board Test.
1. Check the reconnect switches
and associated wiring. See
wiring diagram.
2. Perform the
Input Rectifier
Test.
3. Perform the
Switch Board
Test.
OUTPUT PROBLEMS
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