Lincoln Electric Pro-MIG 140 User Manual download pdf (Page 27)

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TROUBLESHOOTING

E-2

Pro-MIG 140

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)

Major physical or electrical damage

is evident.

No wire feed, weld output or gas

flow when gun trigger is pulled. Fan

does NOT operate.

No wire feed, weld output or gas

flow when gun trigger is pulled.

Fan operates normally.

POSSIBLE

CAUSE

None

Contact your local Authorized Field

Service Facility.

1. Make sure correct voltage is

applied to the machine (115vac).

2. Make certain that power switch

is in the ON position.

3. Make sure circuit breaker is

reset.

1. The thermostat may be tripped

due to overheating. Let machine

cool. Weld at lower duty cycle.

2. Check for obstructions in air

flow. Check Gun Trigger connec-

tions. See Installation section.

3. Gun trigger may be faulty.

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

Observe all Safety Guidelines detailed throughout this manual

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Lincoln Electric Pro-MIG 140 User Manual Page 27

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