Troubleshooting Guide - Lincoln Electric POWER WAVE I400 Operator's Manual

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TROUBLESHOOTING GUIDE

PROBLEMS
(SYMPTOMS)
Auxiliary receptacle is dead.
"Real Time Clock" no longer func-
tioning
PROBLEMS
(SYMPTOMS)
General degradation of weld per-
formance.
Wire burns back to tip when the arc
is initiated.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con-
tact your local authorized Lincoln Electric Field Service Facility for technical assistance.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
BASIC MACHINE PROBLEMS
1. Circuit breaker CB2 (near the
115V receptacle) may have
tripped.
2. Fuse F1 (in reconnect area) may
have blown.
1. Control PC Board Battery.
POSSIBLE
WELD AND ARC QUALITY PROBLEMS
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.
6. Secondary current limit has been
reached.
1. Voltage sense lead problem.
2. Wire feed problem.
CAUTION
POWER WAVE
detailed in the beginning of this manual.
RECOMMENDED
CAUSE COURSE OF ACTION
1. Power down and reset CB2.
2. Power down and replace the
1. Replace the battery (Type:
RECOMMENDED
CAUSE COURSE OF ACTION
1. Check for feeding problems. Check actu-
2. Check for bad connections, excessive
3. Verify gas flow and type are correct.
4. Select the correct weld mode for the
5. Verify the calibration of the output current
6. Long term average current is limited to
1. Check sense lead connections. Check
2. Check for feeding problems. Verify proper
i400
®
Observe Safety Guidelines
fuse.
BS2032)
al WFS vs. preset. Verify proper wire
drive and gear ratio has been selected.
loops in cable, etc.
NOTE: The presence of heat in the exter-
nal welding circuit indicates poor connec-
tions or undersized cables.
application.
and voltage.
450A. Adjust procedure to reduce output
demand.
the sense lead configuration and arc
polarity. Make sure Electrode and Work
connections are not reversed.
wire drive and gear ratio has been select-
ed.
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