Lincoln Electric POWER WAVE SVM135-B Service Manual page 70

F-6
POWER WAVE
Observe all Safety Guidelines detailed throughout this manual.
PROBLEMS
(SYMPTOMS)
The Power Wave has no output --
the fan is running -- a "clicking"
sound may be heard coming from
the machine. The main contactor
CR1 is not "pulling in". If the
STATUS LED is not steady green,
see LED Code Table.
The fan runs slow or intermittently
-- low or no weld output.
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.
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TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS (Continued)
1. Turn the input power OFF
immediately.
2. Make certain the reconnect
panel is configured correctly for
the applied input voltage.
3. If the machine is connected for
380 VAC or higher and has not
been used for a long period of
time, the capacitors may require
"conditioning". Let the Power
Wave 455 run at an idle state
for 30 minutes.
1. Make certain the reconnect
panel is configured correctly.
CAUTION
POWER WAVE 455/POWER FEED 10
RECOMMENDED
COURSE OF ACTION
1. Perform the T1 Auxiliary
Transformer Test.
2. Perform the Main Contactor
Test.
3. Perform the Input Rectifier
Test.
4. Perform the Switch Board
Test.
5. The power board rectifier may
be faulty. Check or replace.
Also check associated wiring.
See wiring diagram.
6. Perform the Power Board Test.
7. The input voltage board may be
faulty.
8. The control board may be faulty.
1. Perform the T1 Auxiliary
Transformer Test.
2. The power board rectifier may
be faulty. Check or replace.
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