Lincoln Electric POWER FEED 25M Service Manual page 78

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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The ammeter on the POWER
FEED® 25M does not function
properly even though the STATUS
LEDs are steady green.
The display and/or indicator LEDs
do not change when their corre-
sponding switches and or knobs
are activated or turned.
The mode and/or settings change
while welding under normal condi-
tions.
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 1-888-935-3877.
All manuals and user guides at all-guides.com
TROUBLESHOOTING AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make sure the DIP switches are
configured correctly for the weld-
ing process and polarity used.
See Setting DIP Switches in
the Wire Drive in the
Installation section of this manu-
al.
2. Check the following connections
on the POWER WAVE®
machine. Check for loose or
faulty connections between plug
J90 at the current transducer and
plug J21 on the Power Source
control board.
1. Check for loose or faulty connec-
tions between the encoder panel
and the Control Box control
board.
2. Check for loose or faulty connec-
tions between the appropriate
switches and the Control Box
control board.
1. Contact "powerwave software.com"
for the latest updated software.
CAUTION
POWER FEED® 25M
RECOMMENDED
COURSE OF ACTION
1. Perform the Current Transducer
Test in the Power Source
Service Manual.
2. The control board, located in the
power source, may be faulty.
1. Check suspected potentiometer
and/or switches for correct resis-
tances and operation.
2. Refer to machine schematics for
lead numbers and voltages.
3. The Control Box control board
may be faulty.
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