Lincoln Electric IDEALARC DC-1000 Service Manual page 39

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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Input contactor pulls in when start
button is pressed but immediately
drops out when start button is
released.
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.
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Make sure input voltages match
machine rating and reconnect
panel.
2. Remove
attached to terminal strip (2, 4,
31, 32, 73, 74, 75, 76, 77). If con-
tactor (1CR) functions correctly,
there may be a ground or nega-
tive intrusion on the remote con-
trol leads (73, 74, 75, 76, or 77).
There may also be a short at the
welder output terminals.
3. If the problem persists after per-
forming steps #1 and #2, the
problem is in the DC-1000.
CAUTION
IDEALARC
1. The 1CR interlock may be
2. The Start/Stop button may be
all external wires
3. Check internal remote control
4. The control board may be faulty
® DC-1000
RECOMMENDED
COURSE OF ACTION
faulty. Replace if necessary.
faulty. Check or replace.
circuit (leads 73, 74, 75, 76 and
77) and switch SW3 for grounds
or shorts.
- Replace.
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