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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
TROUBLESHOOTING AND REPAIR
F-9 F-9
INVERTEC® V450-PRO
Machine shuts down during a weld.
NOTE: The Diagnostic Utility can
be used to check the
‘event log’ to determine
cause of shut-down.
1. Secondary over-current
occurred.
1. Adjust parameters to minimize
momentary shorting of the arc.
2. Check for single phase input,
(loss of L2) which will reduce
the secondary current limit.
Check input fuses or current in
all three phases for balance (+/-
5 amps).
WELD AND ARC QUALITY PROBLEMS
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