Welder User Manual

E-4
TROUBLESHOOTING
E-4
INVERTEC® V311-T AC/DC TIG
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
Machine fails to come on
(LCD screen and LED display do
not illuminate)
Power output incorrect
No output current
1. No Input Voltage.
2. Faulty supply plug or cable.
3. Internal fuse blown.
4. Input voltage not within range
1. Incorrect setting up of the welding
parameters.
2. Low mains supply voltage
1. E01, E02, E03 DISPLAYED, and
the yellow control panel LED on.
• Equipment Overheat. Allow
machine to cool. The power
should remain on so the fan can
maintain airflow and cool the
machine
2. E38 DISPLAYED• Input supply
voltage dipped low.
3. E39, E40 DISPLAYED
• Input supply voltage out of range
or loss of phase .
4. E14, E15, or E18 DISPLAYED
• Internal memory errors. (Contact
your local Lincoln Electric
Authorized Service Facility.)
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.
ELECTRICAL FAILURES