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E-6
TROUBLESHOOTING
E-6
POWER WAVE® S350
Observe all Safety Guidelines detailed throughout this manual
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.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Thermal LED is ON
Thermal LED is ON
“Real Time Clock” no longer func-
tioning
General degradation of weld perfor-
mance
Improper fan operation
1. Improper fan operation.
2. Open thermostat circuit.
1. Control PC Board Battery.
1. Wire feed problem.
2. Cabling problems.
3. Loss of, or improper Shielding
Gas.
4. Verify weld mode is correct for
process.
5. Machine calibration.
1. Check for proper fan operation.
Fan should run in a low speed
setting when the machine is idle
and in a high speed when the
output is triggered. Check for
material blocking intake or
exhaust louvers, or for excessive
dirt clogging cooling channels in
machine.
2. Check for broken wires, open
connections or faulty thermostats
in the thermostat circuit.
1. Replace the battery (Type:
BS2032)
1. Check for feeding problems.
2. Check for bad connections,
excessive loops in cable, etc.
NOTE: The presence of heat in the
external welding circuit indicates
poor connections or undersized
cables.
3. Verify gas flow and type are cor-
rect.
4.Select the correct weld mode for
the application.
5. The power source may require
calibration. (current, voltage,
WFS).
Basic Machine Problems (Continued)
Weld and Arc Quality Problems