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TROUBLESHOOTING
WELDANPOWER 125
Observe Safety Guidelines
detailed in the beginning of this manual.
Troubleshooting Guide
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact your local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
Major Physical or Electrical
Damage is Evident.
No generator power or welding
output.
Generator power is available
but unit will not weld.
Unit will weld but low or no
generator power is available.
No auxiliary power but machine has
weld output
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. Contact your local Lincoln
Authorized Field Service Facility
1. Check brushes for wear. See
Maintenance section.
2. Check for loose or faulty
connections at brush holders.
3. Open lead in flashing or field
circuit.
4. Rheostat (R1) lead broke.
5. Dirty slip rings.
6. Faulty rheostat (R1).
7. Faulty field bridge rectifier (D1).
8. Faulty field capacitor (C1).
9. Faulty stator field winding.
10. Faulty rotor.
1. Loose connection to output stud.
2. Work not connected.
3. Electrode holder loose.
4. No open circuit voltage at output
studs. Open lead in weld circuit.
5. Faulty output bridge rectifier.
6. Faulty choke (L1).
1. Circuit breaker is open.
2. Loose or open connection with
electrical plug-in component.
3. Current control dial not at "MAX"
4. No open circuit voltage at
receptacle.
1. Check CB1 and CB2 - Reset if
tripped.
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
OUTPUT PROBLEMS