Lincoln Electric INVERTEC POWER WAVE 450 SVM112-B Service Manual page 67

F-7
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
Fans run slow or intermittently –
display is very dim – no weld out-
put.
Machine has no output – no dis-
play – fans run – circuit breaker (5
amp) repeatedly trips.
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)
OUTPUT PROBLEMS
1. Make certain the reconnect
panel and fuse (F1) jumper "A"
is configured properly for the
input voltage being applied.
1. Make sure that not more than
5 amps of auxiliary power are
being drawn.
2. Remove the wire feeder control
cable from the Power Wave. If
the symptom disappears, the
wire feeder or control cable is
faulty.
CAUTION
POWER WAVE 450
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. Perform the Auxiliary
Transformer Test #1.
1. The circuit breaker (5 amp)
may be faulty. Test or replace.
2. Perform the Auxiliary
Transformer #1 Secondary
and Wiring Harness Test.
F-7