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
216-383-2531 or 1-800-833-9353.

PROBLEMS
(SYMPTOMS)

POSSIBLE AREAS OF
MISADJUSTMENT(S)

RECOMMENDED
COURSE OF ACTION

FUNCTION PROBLEMS

The AC wave balance control does
not function properly.

1. The AC wave balance control is

operational only in the TIG
mode.

1. Check the AC balance control

(R2) and associated leads for
loose or faulty connections.
See the Wiring Diagram.

2. The control board may be faulty.