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SERVICE FACILITY
CORRECTIVE
ACTION
CORRECTIVE
ACTION
DESCRIPTION/
DEFINITION
31
32
Main transformer
primary over current
Capacitor bank “A”
(lower) is under
voltage
Turn the machine off and
back on to reset the
machine. If condition
persists, contact an
authorized Lincoln Field
Service Facility.
Make sure the reconnect
switches are configured
for the input voltage
being applied to the
machine. The machine
is self clearing when
condition ceases.
Perform the Main Switch
Board Test.
Perform the Power
Board Test.
There may be a problem
with the primary current
sensors (CT) located on
the main switch board.
See the Wiring diagram
The control board may
be faulty.
There may be a problem
with the V/F signals from
the main switch board to
the control board.
Perform the Main Switch
Board Test.
Perform the Power
Board Test.
The control board may
be faulty.
TROUBLESHOOTING & REPAIR
F-9 F-9
V350-PRO
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FAULT CODES
NOTE: If more than one fault message is being displayed, perform all the checks for the faults
before replacing the printed circuit board