Lincoln Electric INVERTEC POWER WAVE 450 SVM112-B Service Manual page 77

F-17
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
Foreign characters are shown on
the Power Wave display.
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.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
Contact your local Lincoln
Authorized Field Service Facility.
CAUTION
POWER WAVE 450
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. Make sure molex plug J19 is
plugged into the Display board
securely and the pins are
secure in the plug body.
2. The display board may be
faulty. Replace and perform
voltage calibration.
F-17