E-5

TROUBLESHOOTING

E-5

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

Basic Machine Problems

Input fuses keep blowing

1.

Improperly sized input fuses.

1.

Make sure fuses are properly

 

 

 

 

 

 

sized. See installation section of

 

 

 

 

 

 

this manual for recommended

 

 

 

 

 

 

sizes.

 

 

 

 

 

 

 

 

 

 

2.

Improper Weld Procedure requir-

2.

Reduce output current, duty

 

 

 

 

ing output levels in excess of

 

cycle, or both.

 

 

 

 

machine rating.

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

Major physical or electrical dam-

3.

Contact your local authorized

 

 

 

 

age is evident when the covers

 

Lincoln Electric Field Service

 

 

 

 

are removed.

 

facility for technical assistance.

 

 

 

 

 

 

 

Machine will not power up (no lights)

1.

No Input Power

1.

Make sure input supply discon-

 

 

 

 

 

 

nect has been turned ON. Check

 

 

 

 

 

 

input fuses. Make certain that the

 

 

 

 

 

 

Power Switch (SW1) on the

 

 

 

 

 

 

power source is in the “ON” posi-

 

 

 

 

 

 

tion.

 

 

 

 

 

 

 

 

 

 

2.

Input voltage is too low or too

2.

Make certain that input voltage is

 

 

 

 

high.

 

correct, according to the Rating

 

 

 

 

 

 

Plate located on the rear of the

 

 

 

 

 

 

machine.

 

 

 

 

 

 

 

Machine wonʼt weld, canʼt get any

1.

Input voltage is too low or too high.

1.

Make certain that input voltage is

output.

 

 

 

 

correct, according to the Rating

 

 

 

 

 

 

Plate located on the rear of the

 

 

 

 

 

 

machine.

 

 

 

 

 

 

 

 

 

 

2.

Thermal Error.

2.

See “Thermal LED is ON” sec-

This problem will normally be

 

 

 

 

tion.

accompanied by an error code. See

 

 

 

 

 

 

3.

Secondary current limit has been

3.

Possible short in output circuit. If

“Status Light” section of this docu-

ment for additional information.

 

 

exceeded. (see error 54)

 

condition persists, contact an

 

 

 

3a. Input control board fault (see

 

authorized Lincoln Electric Field

 

 

 

 

input control board error status).

 

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.

POWER WAVE® S350

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Lincoln Electric S350 manual Basic Machine Problems