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F-6
TROUBLESHOOTING & REPAIR
F-6
INVERTEC V250-S
Observe all Safety Guidelines detailed throughout this manual
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 216-383-2531 or 1-800-833-9353.
CAUTION
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
Output turns on momentarily, then
switches off and repeats cycle.
Remote output control not
functioning. The machine operates
normally on LOCAL control.
1. Check the input voltages and
reconnection procedures. Make
sure the input voltage is correct
for the machine. See
Input
Voltage Reconnect Procedure
.
2. Check or replace remote control
device. (If used)
1. Make sure the Local/Remote
switch (S3) is in the REMOTE
position.
2. The remote control device may
be faulty. Replace.
1. Check Local/Remote switch (S3)
and associated wiring for loose or
faulty connections.
2. Check Mode Switch (S2) and
associated wiring for loose or
faulty connections.
3. If the machine is connected for
380VAC input or higher, perform
the
Capacitor Balance Test
.
4. The power board may be faulty.
Replace.
5. The control board may be faulty.
Replace.
1. Check the Local/Remote switch
(S3) and the associated wiring.
See wiring diagram.
2. Check for loose or faulty
connections at the remote control
receptacle.
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