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TROUBLESHOOTING & REPAIR
F-19 F-19
V160-S & -T
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Service and repair should be performed by only 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 pre-
cautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to per-
form the test / repairs safely, contact the Lincoln Electric Service Department for
electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.
WARNING
MAIN IGBT INVERTER BOARD V160-S/T
“WELDING LOGIC AND INVERTER” SECTION TEST
TEST DESCRIPTION
This test will help determine if all of the Welding Logic Circuit and Inverter are functioning
properly.
Note: There have been some revisions to the inverter boards. The older boards are
identified with line art drawings. The later boards are presented as digital pho-
tographs. Perform correct test procedures for suspect boards.
MATERIALS NEEDED
Volt/Ohmmeter
Phillips Head Screwdriver
Wiring Diagram