E-3

 

TROUBLESHOOTING

E-3

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

PROBLEMS

POSSIBLE

RECOMMENDED

 

(SYMPTOMS)

CAUSE

COURSE OF ACTION

OUTPUT PROBLEMS

Output current reduced significantly

1.

Input power to machine doesnʼt

when AC Balance control knob is set

 

have sufficient capacity. Try

near or at max. penetration or when

 

changing Input power to a suffi-

Output control is set near or at full

 

cient supply, refer to Installation

output.

 

section.

 

2. Machine is powered from an

 

 

engine generator or an engine

 

 

welder. If welding at high currents

 

 

are needed, try powering machine

 

 

from electricity grid instead of

 

 

engine generator.

 

3.

Set AC Balance control at Auto

 

 

Balance position.

 

 

 

The machine does not have output

1.

Check the electrode cable and

in the Stick mode. The machine

 

holder for loose or faulty connec-

operates correctly in the TIG mode.

 

tions.

 

 

 

Machine welds at a very low output

1.

If welding in the TIG mode the

regardless of the current control set-

 

remote control device may be

ting.

 

defective.

 

2.

Make certain the input line voltage

 

 

is correct for the machine recon-

 

 

nect configuration.

 

3.

Check the welding cables and/or

 

 

torch for loose or faulty connec-

 

 

tions.

 

 

 

The machine welds at a very high

1.

If welding in the TIG mode the

output regardless of the current con-

 

remote control device may be

trol setting.

 

defective.

 

 

 

 

 

 

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

PRECISION TIG 225

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Lincoln Electric 225 manual Troubleshooting