Lincoln Electric FLEXTEC 450 CE - Manual (Page 29)

E-2 TROUBLESHOOTING E-2
FLEXTEC™ 450 CE
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
Major physical or electrical damage
is evident when the sheet metal
covers are removed.
Machine wonʼt weld, canʼt get any
output.
Thermal symbol is lit.
Wire feeder wonʼt work. Apparently
no power to wire feeder
1. Contact your local authorized
Lincoln Electric Field Service facil-
ity for technical assistance.
1. If the displays show an Err ###
see the fault section for corrective
action.
2 If the thermal symbol is lit refer to
the thermal section.
3 If the output terminals are in
remote control switch to "ON" and
check for output voltage. If output
voltage is now present check for
correct remote control connection
and operation.
1. Check for proper fan operation.
• Check for material blocking
intake or exhaust louvers.
• Blow air in the rear louvers to
clear dirt from the fan.
Note: The Fan As Needed circuitry
automatically shuts off the fan
5 minutes after welding has
stopped.
2. Welding output ratings may have
been exceeded. Allow the
machine to cool down and reset.
1. Check circuit breakers by the wire
feeder receptacles on the rear of
the machine. Reset
2. Check the control cable between
the power source and the wire
feeder for continuity.
1.If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service
Facility.