E-2

TROUBLESHOOTING

E-2

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

No welder or output power.

1.

Open in miscellaneous leads.

 

2.

Open lead in flashing or field

 

 

circuit.

 

3.

Faulty rotor.

 

4.

Faulty Potentiometer (R1).

 

5.

Faulty stator Field winding.

 

6.

Faulty Field rectifier (D2).

 

7.

Faulty P.C. Board.

 

 

 

Engine will not idle down to low

1.

Idler switch on High Idle.

speed.

 

 

 

2.

Insufficient voltage present

 

 

between terminals #213 and

 

 

#5E. (Voltage should be 12V

 

 

DC).

 

3.

External load on welder or

 

 

auxiliary power.

 

4.

Faulty wiring in solenoid circuit.

 

5.

Faulty idler solenoid.

 

6.

Faulty P.C. Board.

 

 

 

Engine will not go to high idle when

1.

Poor work lead connection to

attempting to weld.

 

work.

 

2.

No voltage signal from the

 

 

current sensor.

 

3.

No open circuit voltage on

 

 

output studs.

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Authorized Field Service Facility.

4.Faulty P.C. Board.

CAUTION

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.

WELDMARK 225

Page 28
Image 28
Lincoln Electric 225 manual Troubleshooting