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F-8

TROUBLESHOOTING AND REPAIR

F-8

Observe all Safety Guidelines detailed throughout this manual.

PROBLEMS

POSSIBLE AREAS OF

 

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

FUNCTION PROBLEMS (Continued)

 

 

 

 

 

 

The “Cold Feed Forward” and/or

1.

Check the connectors and wires

1.

Perform the Keypad Resis-

the “Cold Feed Reverse” buttons

 

between the display board and

 

tance Test.

do not function properly. The motor

 

the control board for loose or

 

 

operates properly in other modes.

 

faulty connections. (J11 and J3)

2.

The display board may be

 

 

 

 

 

 

 

faulty.

 

2.

Check

the connector

J10

 

 

 

 

between the keypad and the

3.

The control board may be

 

 

display

board

for

loose

 

faulty.

 

 

connections.

 

 

 

 

 

 

 

 

 

The “Gas Purge” button does not

1.

Check the connectors and wires

1.

Perform the Keypad Resis-

activate the gas solenoid. The gas

 

between the display board and

 

tance Test.

solenoid operates properly in other

 

the control board for loose or

 

 

modes.

 

faulty connections. (J11 and J3)

2.

The display board may be

 

 

 

 

 

 

 

faulty.

 

2.

Check

the connector

J10

 

 

 

 

between the keypad and the

3.

The control board may be

 

 

display

board

for

loose

 

faulty.

 

 

connections.

 

 

 

 

 

 

 

 

 

The “Procedure” button does not

1.

Check the connectors and wires

1.

Perform the Keypad Resis-

function properly.

 

between the display board and

 

tance Test.

 

 

the control board for loose or

 

 

 

 

faulty connections. (J11 and J3)

2.

The display board may be

 

 

 

 

 

 

 

faulty.

 

2.

Check

the connector

J10

 

 

 

 

between the keypad and the

3.

The control board may be

 

 

display

board

for

loose

 

faulty.

 

 

connections.

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-800-833-9353.

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Lincoln Electric SVM154-A service manual Function Problems

SVM154-A specifications

The Lincoln Electric SVM154-A is a powerful and versatile inverter-based welding machine designed for a wide range of applications. As a part of Lincoln Electric's esteemed portfolio, this model is particularly favored for its robust performance and cutting-edge technologies, making it ideal for both professional fabricators and hobbyists alike.

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