Symptoms, Major physical or electrical damage is evident, Machine is dead - no output, no fan, no display – Lincoln Electric IDEALARC CV-300 User Manual
Page 42: Troubleshooting & repair, Caution
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TROUBLESHOOTING & REPAIR
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IDEALARC CV-300
TROUBLESHOOTING GUIDE - 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, con-
tact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed call 216-
383-2531 or 1-800-833-9353
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Major Physical or Electrical Damage
is Evident
Machine is dead - No output, no fan,
no display.
The machine has no output. The fan
runs and the display lights.
1.
Contact The Lincoln Electric
Service Dept. (216) 383-2531 or
1-800-833-9353 (WELD)
1.
Check input line switch may be
faulty. Check or replace.
2.
Remove the input power and
check for loose or broken leads
at the reconnect panel and at
the main transformer primary
coils.
3.
1. Check the trigger circuit (#2 and
#4) for continuity from the 14 pin
amphenol to the control board.
See wiring diagram.
2.
If the machine has output in
machine control but not in
remote control, check the
remote switch (S4). Check the
wiring to the control board and
to the 14 pin amphenol.
3.
4.
5.
Check the latching resistor (R1)
and the associated leads. See
wiring diagram.
6.
Check for leaking or faulty
capacitors.
7.
Check for loose or faulty con-
nections at the output terminals
and the heavy current carrying
leads.
8.
The control board may be faulty.
Replace.
1.
Contact your local Lincoln
Electric Authorized Field
Service Facility.
1.
Check for blown or missing
fuses in the input line.
2.
Check the three phase input line
voltage at the machine. Input
voltage must match the rating
plate and the reconnect panel.
1.
Make sure the thermal light is
NOT lit (earlier codes the pilot
light is NOT blinking). If either
condition exists, then the
machine may be overheated.
2.
If an error message is dis-
played, see
3.
Make sure the three phase input
voltage matches the reconnect
panel configuration and that all
three phases are applied to the
machine.
4.
Place a jumper wire from pin “C”
to pin “D” at the 14 pin amphe-
nol connection. If output is
restored, then check the
wirefeeder and associated con-
trol cable.
5. Place the remote switch in
machine control. If output is
restored, then the remote con-
trol unit may be faulty. Check or
replace.
CAUTION