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TROUBLESHOOTING
Troubleshooting Guide
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Major Physical or Electrical
Damage is Evident.
Machine is Dead -
No Output - No Fan
No Displays.
Fan runs - Display and control
panel dark. No output from
machine in either Stick or TIG
modes.
The voltmeter reads “00” in Stick
Mode, and there is no output from
the machine when in the TIG
2-Step Mode.
Machine does not respond (no gas
flow, no high frequency and no
open circuit voltage) when arc
switch or amptrol is activated -
displays and fan working.
115VAC Receptacle not working
properly (voltage is below 108VAC).
Machine has welding output - fan is
running.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. Contact The Lincoln Electric
Service Dept. (216) 383-2531
1. Make certain that the input
power switch is in the “ON”
position.
2. Check the input voltage at the
machine. Input voltage must
match the rating plate and
reconnect the panel.
3. Blown or missing fuses in
input line.
1. Check for proper input
voltages. As per nameplate
and reconnect panel.
1. Inspect to assure that the arc
start switch is in the on
(closed) position when
welding in the TIG Mode.
1. Machine MUST be in one of
the TIG Modes.
2. The arc start switch or amptrol
may be defective. Check for
continuity between pins “D”
and “E” on cable connector
when arc switch or amptrol is
activated.
1. Check for 115VAC at
receptacle - if low (below
108VAC), then check input
voltage to machine.
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
OUTPUT PROBLEMS
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact your local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION