Lincoln Electric IM10076 LN-25 PRO - Manual (Page 35)

E-2 TROubLEShOOTING E-2
LN-25™ PRO
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
Err 81
Err 82
The feeder does power up - no dis-
play, no cold feed.
(Across the Arc models)
The wire feeder power up but there
is no output when the trigger is
pulled. The shielding gas is flowing
and the drive rolls turn.
No shielding gas.
Motor overload, long term.
Motor overload, short term.
1. The work sense lead is discon-
nected or is a poor electrical con-
nection. (Across the arc models)
2. The power source is OFF.
3. The circuit breaker for the wire
feeder on power source have
tripped. (control cable models)
4. The control cable may be loose or
damaged. (control cable models)
1. The contactor coil connections are
loose.
2. The contactor has failed.
1. The gas supply is OFF or empty.
2. The gas hose is cut or crushed.
3. The flow meter valve is closed.
4. Dirt or debris is in the solenoid.
5. There is a loose solenoid connec-
tion.
6. The solenoid has failed.
1. Check that the electrode slides
easily through the gun and cable.
2. Remove tight bends from the gun
and cable.
3. Check that the spindle brake is
not too tight.
4. Verify a high quality electrode is
being used.
5. Wait for the error to reset and the
motor to cool (approximately 1
minute).
1. Check that motor can turn freely
when idle arm is open.
2. Verify that the gears are free of
debris and dirt.
1. Connect the work sense lead to
the work in a location free of dirt,
rust and paint.
2. Turn ON the power source.
3. Reset the circuit breakers.
4. Tighten, repair or replace the con-
trol cable.
1. Verify the contactor coil connec-
tions.
2. Replace the contactor.
1. Verify the gas supply is ON and
flowing.
2. Route the gas hose so it avoids
sharp corners and make sure
nothing is on top of it. Repair or
replace damaged hoses.
3. Open the flow meter valve.
4. Apply filtered shop at 80psi to the
solenoid to remove dirt.
5. Remove the cover and check that
all connections are in good condi-
tion.
6. Replace solenoid.
Digital Display Models Error Codes
Output Problems