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TROUBLESHOOTING & REPAIR
F-19 F-19
COMMANDER 400 WITH G2713-1 CONTROL BOARD
ERROR CODES DURING
INITIALIZATION SEQUENCE
DEFINITION / SYMPTOM CORRECTIVE ACTION
LCH
Err
The output current is too high
(greater than 750 amps for more
than 1 second).
XIRQ error (illegal external
interrupt request).
The machine may be “over
loaded.” Remove any external
loads. If the problem persists
with no external load, check the
shunt leads and associated con-
nections to the control board.
See the Wiring Diagram. Perform
the SCR/Diode Rectifier Bridge
Test.
If the above procedures
do not reveal the problem, the
control board may be faulty.
If a High Frequency unit is being
used, make sure it is connected
properly. There may be high
frequency intrusion from another
source in the immediate area.
Remove all possible forms of RF
intrusion.
If the problem persists, the
control board may be faulty.
COMMANDER 400