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TROUBLESHOOTING AND REPAIR
F-25F-25
LN-25™
CONTACTOR & CONTACTOR PC BOARD TEST
TEST DESCRIPTION
The following test will determine if the contactor is functional.
MATERIALS NEEDED
Phillips Head Screwdriver
12 VDC Supply
Volt/Ohmmeter
NOTE: LN-25™ units with the L12253-[ ] Control Board do not use a Contactor PC
Board. Codes above 10100 may have been upgraded to use this Control
Board and must be tested accordingly.
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 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.
WARNING
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