E-4

 

 

TROUBLESHOOTING

 

 

E-4

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

PROBLEMS

 

 

POSSIBLE

 

RECOMMENDED

 

 

 

 

 

 

 

 

 

(SYMPTOMS)

 

 

CAUSE

 

COURSE OF ACTION

 

 

 

ELECTRICAL

 

FAILURES

 

 

 

 

 

 

 

 

 

 

Machine fails to come on

 

1.

No Input Voltage.

 

 

 

 

 

 

 

 

 

(LCD screen and LED display do 2.

Faulty supply plug or cable.

 

 

 

 

not illuminate)

3.

Internal fuse blown.

 

 

 

 

Power output incorrect

4.

Input voltage not within range

 

 

 

 

1.

Incorrect setting up of the welding

 

 

 

 

 

 

2.

parameters.

 

 

 

 

No output current

Low mains supply voltage

 

 

 

 

1.

E01, E02, E03 DISPLAYED, and

 

 

 

 

 

 

 

 

the yellow control panel LED on.

 

 

 

 

 

 

 

 

• Equipment Overheat. Allow

 

 

 

 

 

 

 

 

machine to cool. The power

 

 

 

 

 

 

 

 

should remain on so the fan can

 

 

 

 

 

 

 

 

maintain airflow and cool the

 

 

 

 

 

 

2.

machine

 

If all recommended possible areas of

 

 

 

E38 DISPLAYED• Input supply

 

 

 

 

3.

voltage dipped low.

 

misadjustment have been checked

 

 

 

E39, E40 DISPLAYED

 

and the problem persists, Contact

 

 

 

 

 

• Input supply voltage out of range your local Lincoln Authorized

 

 

 

 

 

 

or loss of phase .

 

Field Service Facility.

 

 

 

 

 

4. E14, E15, or E18 DISPLAYED

 

 

 

 

 

 

 

 

• Internal memory errors. (Contact

 

 

 

 

 

 

 

 

your local Lincoln Electric

 

 

 

 

 

 

 

 

Authorized Service Facility.)

 

 

 

CAUTION

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.

V310-T AC/DC TIG

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Lincoln Electric IM958 manual Course of Action, Failures