Lincoln Electric PRECISION TIG 225 Operator's Manual page 30

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PROBLEMS
(SYMPTOMS)
Output current reduced significantly
when AC Balance control knob is set
near or at max. penetration or when
Output control is set near or at full
output.
The machine does not have output
in the Stick mode. The machine
operates correctly in the TIG mode.
Machine welds at a very low output
regardless of the current control set-
ting.
The machine welds at a very high
output regardless of the current con-
trol setting.
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.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
OUTPUT PROBLEMS
1. Input power to machine doesnʼt
have sufficient capacity. Try
changing Input power to a suffi-
cient supply, refer to Installation
section.
2. Machine is powered from an
engine generator or an engine
welder. If welding at high currents
are needed, try powering machine
from electricity grid instead of
engine generator.
3. Set AC Balance control at Auto
Balance position.
1. Check the electrode cable and
holder for loose or faulty connec-
tions.
1. If welding in the TIG mode the
remote control device may be
defective.
2. Make certain the input line voltage
is correct for the machine recon-
nect configuration.
3. Check the welding cables and/or
torch for loose or faulty connec-
tions.
1. If welding in the TIG mode the
remote control device may be
defective.
PRECISION TIG 225
CAUSE
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.
CAUTION
RECOMMENDED
COURSE OF ACTION
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