Lincoln Electric 11141 Service Manual page 54

F-8
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Auxiliary receptacle is "dead" no
auxiliary voltage.
A fault or error code is displayed.
General degradation of the weld
performance.
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.
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Circuit breaker CB1 (on case
front) may have opened. Reset.
2. Circuit breaker CB3 (in recon-
nect area) may have opened.
Reset.
3. On PW 405 models, the circuit
breaker
220VAC receptacle.
tripped.
1. See Fault Code Explanations.
1. Check for feeding problems, bad
connections, excessive loops in
cabling, etc.
2. Verify weld mode is correct for
processes.
3. The power source may require
calibration.
4. Check the actual current dis-
played on the Power Feed 10 vs.
actual current measured via
external meter.
5. Check the actual voltage dis-
played on the Power Feed 10 vs.
actual voltage measured via
external meter.
6. Check the actual WFS displayed
on the Power Feed 10 vs. actual
WFS measured via external
meter.
CAUTION
POWER WAVE
1. Perform the Auxiliary
CB4 protects the
Reset if
1. See Fault Code Explanations.
1. Perform the Voltage and
2. Perform the Current
2. Perform the Output Rectifier
5. The control board may be
® 355M/405M
RECOMMENDED
COURSE OF ACTION
Transformer Test.
Current Calibration Procedure
using the Power Wave soft-
®
ware program.
Transducer Test.
Modules Test.
faulty.
F-8