Pfc Control Board Test - Lincoln Electric POWER WAVE S500 Service Manual

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Service and repair should be performed only by Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician
or machine operator and will invalidate your factory warranty. For your safety and to avoid
electrical shock, please observe all safety notes and precautions detailed throughout this
manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical trou-
bleshooting assistance before you proceed. Call 1-888-935-3877.
TEST DESCRIPTION
This test will help determine if the PFC Control Board is functioning correctly. There are
very high voltages present on the PFC Control Board. This test will be limited to LED and
audio error codes and also resistance and diode checks with the input power removed
from the machine. This test will not test all of the circuits on the board.
MATERIALS NEEDED
Volt/Ohmmeter
Wiring Diagram
TROUBLESHOOTING AND REPAIR

PFC CONTROL BOARD TEST

WARNING
POWER WAVE ® S500
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