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15
TROUBLESHOOTING
15
SQUARE WAVE TIG 175
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
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Machine regularly over heats - ther-
mostat opens, Yellow light on front
panel glows. The fan runs but
machine has no output.
1. Welding application may
exceed recommended duty
cycle. Reduce the duty cycle.
2. Dirt and dust may have
clogged the cooling channels
inside the machine. Blow out
unit with clean, dry
low pressure air.
3. Air intake and exhaust louvers
may be blocked due to
inadequate clearance around
machine.
Contact your Local Lincoln Authorized
Field Service Facility for technical
troubleshooting assistance.