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PRO-CUT 25
TROUBLESHOOTING & REPAIR
F-7 F-7
Observe Safety Guidelines
TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
CAUTION
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 1-888-935-3877.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
FUNCTION PROBLEMS
Will only cut thin gauge material or
cutting cutting is 1/2 of what it
should be. Cuts for 3 seconds
then quits.
The ground lead or clamp is dis-
connected. Unit is not transferring
to cut mode.
1. Replace or repair, clamp or
cable.
2. Clamp directly to the piece to
be cut.
3. Look for the transfer signal from
the inverter board to the control
Board per the enhanced dia-
gram.
4. Possible replacement of the
inverter board per the signal of
the enhanced diagram.
5. Possible replacement of the
Control Board per the signal of
the enhanced diagram.
6. Use the correct extension cord.
See the instruction manual.
When nothing is described for your
problem, or you have performed
your test with no solution.
1. Unplug and re-plug in all the
printed circuit board harness
connectors.