Lincoln Electric COMMANDER 400 SVM133-B Service Manual page 80

F-26
COMMANDER 400 WITH G2713-2 OR -3 CONTROL BOARD
ERROR CODES WHILE
RUNNING
ECH
ECL
CSS
TROUBLESHOOTING & REPAIR
DEFINITION / SYMPTOM
The exciter voltage is too high
(greater than 550 VAC).
The exciter voltage is too low (less
than 140 VAC).
The processor is not receiving
zero cross signals properly or the
engine RPM is too high.
COMMANDER 400
CORRECTIVE ACTION
Check exciter voltage waveforms
as illustrated in the Oscilloscope
Waveforms Sections.
Perform the Stator
Exciter Winding Test.
Perform the Engine Throttle
Adjustment Test.
Perform the Exciter Capacitor
Bank Test.
Check leads #268, #269, & #270
from J50 to J4 at the control board
for loose or faulty connections.
Also check the T1, T2, & T3 lead
connections from the Exciter
Module to the stator and capacitor
bank leads.
F-26
Voltage