Lincoln Electric SVM154-A Service Manual page 53

F-8
Observe all Safety Guidelines detailed throughout this manual.
PROBLEMS
(SYMPTOMS)
The "Cold Feed Forward" and/or
the "Cold Feed Reverse" buttons
do not function properly. The motor
operates properly in other modes.
The "Gas Purge" button does not
activate the gas solenoid. The gas
solenoid operates properly in other
modes.
The "Procedure" button does not
function properly.
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.
-----------------------------------------------------------------------------------------------------------------------------
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS (Continued)
1. Check the connectors and wires
between the display board and
the control board for loose or
faulty connections. (J11 and J3)
2. Check the connector J10
between the keypad and the
display board
connections.
1. Check the connectors and wires
between the display board and
the control board for loose or
faulty connections. (J11 and J3)
2. Check the connector J10
between the keypad and the
display board
connections.
1. Check the connectors and wires
between the display board and
the control board for loose or
faulty connections. (J11 and J3)
2. Check the connector J10
between the keypad and the
display board
connections.
CAUTION
RECOMMENDED
COURSE OF ACTION
1. Perform the Keypad Resis-
2. The display board may be
3. The control board may be
for loose
1. Perform the Keypad Resis-
2. The display board may be
3. The control board may be
for loose
1. Perform the Keypad Resis-
2. The display board may be
3. The control board may be
for loose
LN-10
tance Test.
faulty.
faulty.
tance Test.
faulty.
faulty.
tance Test.
faulty.
faulty.
F-8