Lincoln Electric COMMANDER SVM145-B Service Manual page 63

F-7
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
The output control
Commander 300 does not work
properly.
The remote output control does not
function properly.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely,
contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-800-833-9353.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
on the 1. Make sure the Remote/Local
switch is in the "Local" position.
2. The output control (R1) may be
defective.
1. Make sure the Remote/Local
switch is in the "Remote" posi-
tion.
2. The remote control unit may be
faulty. Repair or replace.
CAUTION
COMMANDER 300
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. Check the Remote/Local switch
and associated wiring. See the
Wiring Diagram. (leads #75,
#76 and #77)
2. Perform the Power Supply
Test.
3. Perform the Control Input
Test.
4. Perform the Feedback Input
Test.
5. Perform the PWM Output Test.
6. Perform the Power Module
Test.
1. Check the Remote/Local switch
and associated leads. See the
Wiring Diagram.
2. Check the amphenols and
associated leads.
Wiring Diagram.
3. Perform the RF Bypass Board
Resistance Test.
F-7
See the