E-4
TROUBLE SHOOTING
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility
for technical troubleshooting assistance before you proceed.
ASPECT™ 375
Observe all Safety Guidelines detailed throughout this manual
CAUTION
Insufficient cleaning
Wave shape settings may not suit
application
Set for manual balance and
increase EP or reduce balance
percentage
Insufficient penetration
Wave shape settings may not suit
application
Set for manual balance and
increase EN or balance
percentage
Unstable
Wrong Wave form setting
AC frequency may not suit application
Adjust AC frequency
Tail-out current too high
Finishing current may be set too high
Reduce Finishing current
Output shut off during
welding
Spot Timer may be turned on
inadvertently
Access “GTAW” menu (see
operation section) and change
“SPOT” to “OFF”
Faulty Components, PC Boards or
Connections
Contact your local Lincoln
Authorized Field Service Facility.
SYMPTOMS
POSSIBLE CAUSE
RECOMMENDED COURSE OF ACTION
Access “GTAW” menu (see
operation section) and change
“WAVE” setting to “SQRE” or “SOFT”
