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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.
F-4
TROUBLESHOOTING & REPAIR
F-4
IDEALARC DC-1000
Observe all Safety Guidelines detailed throughout this manual
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
Major Physical or Electrical
Damage is Evident.
The Machine is dead - The Input
contactor does not operate.
Input contactor (1CR) chatters.
1. The.Start/Stop button (S1)
may be faulty- Check for prop-
er operation. See wiring dia-
gram.
2. The Control Transformer (T2)
may be faulty. Perform the
Control Transformer Test
.
3. The primary or secondary
thermostats may be open.
Check or replace. Also check
the associated wiring. See
wiring diagram.
4. The pilot relay (2CR) may be
faulty. Check or replace. See
wiring diagram.
5. The input contactor coil may
be open. See wiring diagram.
6. The Control board may be
faulty - Replace.
1. The pilot relay (2CR) may
have bad contacts. Check or
replace relay.
2. Check for loose or faulty
wiring between pilot relay
(2CR) and input contactor
(1CR) coil connections.
3. The input contactor (1CR)
may be faulty - Replace.
Contact the Lincoln Electric
Service Dept. (216) 383-2531
or 1-800-833-9353 (WELD)
1. Check for blown or missing
fuses in input lines.
2. Check the three-phase input
line voltage at the machine.
The input voltage must match
the rating plate and reconnect
panel.
1. The input line voltage may be
low. Check all three phases.
2. Make sure input line voltage
matches machine rating and
reconnect panel.
CAUTION