Lincoln Electric IM318 IDEALARC DC1500 - Manual (Page 20)

E-4 TROUBLESHOOTING E-4
IDEALARC ® DC-1500
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 your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Output control not functioning on the
machine.
Output control not functioning on the
machine.
Machine trips off with High
Current Procedures on starting.
1. “Output Control” switch in the
wrong position.
2. Faulty output control switch.
3. Faulty “Output Control” rheostat.
4. Leads or connections open in
“Control Circuit”.
5. Faulty “Firing Circuit” or
“Control/Fault Protection” P.C.
board.
1. “Output Control” switch in the
wrong position.
2. Faulty output control switch.
3. Faulty remote control rheostat.
4. Leads or connections open in
“Control Circuit”
5. Faulty “Firing” or “Control/Fault
Protection” P.C. board.
1. OCV setting too high.
2. Defective control board.
1. Place switch in “Output Control at
DC-1500”.
2. Check and replace if found faulty.
3. Check and replace if found faulty.
4. Check lead continuity and connec-
tions for an open and repair if nec-
essary.
5. All light emitting diodes must be lit
on both P.C. boards, except L4
on “Control/Fault Protection”
board. (See “P.C. Board
Troubleshooting Guide.”)
1. Place switch in “Output Control
Remote”.
2. Check and replace if found faulty.
3. Check and replace if found faulty.
4. Check all leads and connections,
internal and remote, for continuity
and repair if necessary.
5. All light emitting diodes must be lit
on both P.C. boards, except L4
on “Control/Fault Protection”
board. (See “P.C. Board
Troubleshooting Guide.”)
1. Reduce OCV setting.
2. Replace control board.