Lincoln Electric RANGER 250 IM919 - Manual (Page 33)

E-4 TROUBLESHOOTING E-4
RANGER® 250
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
No welding power output.
Welder has output but no control.
Wire feeder does not work when
control cable is connected to 14 pin
Connector.
No auxiliary power.
1. Poor work lead connection to
work.
2. "Weld Terminals" switch in
wrong position.
3. Faulty PC board or welder alter-
nator.
1. Poor remote / control cable con-
nection to 6 pin or 14 pin
Amphenol connector.
2. Faulty remote cable or faulty
wire feeder or wire feeder cable.
3. Faulty control potentiometer or
PC board.
1. Wire Feeder Power circuit
breaker open.
2. Faulty control cable.
3. Faulty wire feeder.
1. Open circuit breakers.
2. Faulty connections to auxiliary
receptacles.
3. GFCI tripped (if installed).
4. Brushes worn or not on contact
with slip rings.
5. Rotor winding not receiving
flashing current from PC board.
6. Rotor winding open.
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service
Facility.