Lincoln Electric CV-300 Machine Troubleshooting Guide, Problems, Possible Areas Of, Recommended

Models: CV-300

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Observe all Safety Guidelines detailed throughout this manual

E-3

TROUBLESHOOTING

E-3

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

MACHINE TROUBLESHOOTING GUIDE

Not all trouble conditions can be recognized by the PC board, and displayed as error codes. The following guide covers most other trouble conditions.

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

 

 

(SYMPTOMS)

MISADJUSTMENTS

COURSE OF ACTION

 

 

 

 

 

 

 

 

PROBLEMS

 

 

 

 

 

 

 

Machine has no output.

1.

Secondary contactor circuit (2

 

 

and 4 wire feeder receptacle) not

 

 

working.

 

2.

Electrode or work lead loose or

 

 

broken.

 

3.

Defective PC Board.

 

4.

Protective circuits operating due

 

 

to output short circuit.

 

5.

If using an LN-25, K484 jumper

 

 

plug kit not making connection

 

 

between 2 & 4 in wire feeder

 

 

receptacle.

 

6.

If welding with 1/16" aluminum

 

 

wire and machine is flashing E00.

Machine has minimum output and no 1. Voltage Control misconnected. control.

Machine has low output and no con- 1. Open in feedback circuitry. trol.

2. Faulty PC Board.

3. Voltage Adjust potentiometer circuit open (lead 75).

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

MACHINE TROUBLESHOOTING GUIDECAUTION

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.

CV-300

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Lincoln Electric CV-300 Machine Troubleshooting Guide, Problems, Possible Areas Of, Recommended, Symptoms, Misadjustments