If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-
800-833-9353.

PROBLEMS
(SYMPTOMS)

POSSIBLE AREAS OF
MISADJUSTMENT(S)

RECOMMENDED
COURSE OF ACTION

OUTPUT PROBLEMS

Major physical or electrical dam-
age is evident when the sheet
metal cover(s) are removed.

1. Contact your local authorized

Lincoln Electric Field Service
Facility for technical assis-
tance.

Machine is dead – no output – no
fans – no displays.

1. Check the main input fuses. If

open, replace.

2. Make certain that the input

power switch (S1) is in the
“ON” position.

3. Check for proper input voltage

– must match the rating on the
machine nameplate.

4. Make certain the reconnect

panel is configured properly for
the applied voltage.

5. Check fuse (F1) in the recon-

nect panel. If faulty, replace
with 5-amp slow-blow fuse.

1. If fuse (F1) quickly fails, per-

form the Auxiliary
Transformer Primary Wiring
Harness Test.

2. If fuse (F1) does not fail, per-

form the Auxiliary
Transformer Test #1.