TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES Continued
CORRECTIVE ACTION - Continued
STEP 8.
Verify the problem has been resolved.
NOTE
GSC fault shutdown indicator flashes at four to five times per second. GSC displays may not be
responding. GSC does not respond to any position of the ECS. This is an internal fault of the
GSC which may be temporary or permanent. This condition may also be caused by severe
electromagnetic fields or radio frequency interference (RFI).
SYMPTOM
3.
GSC Operation Is Erratic.
MALFUNCTION
Red Fault Shutdown Indicator Flashing.
CORRECTIVE ACTION
STEP 1.
With the engine running, on EMCP set ENGINE CONTROL switch to
OFF/RESET.
a. If GSC does not power down, set DEAD CRANK SWITCH to OFF, then back
to NORMAL.
b. If GSC does not power down, press EMERGENCY STOP button. Set the
Battery Disconnect Switch to OFF and the DEAD CRANK SWITCH to OFF.
STEP 2.
Replace GSC (WP 0040).
STEP 3.
On EMCP set ENGINE CONTROL switch to COOL DOWN/STOP. Set Battery
Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
STEP 4.
If GSC powers up normally, verify all programmed parameters (WP 0085) and
retry system.
STEP 5.
Verify the problem has been resolved.
NOTE
Zero volts or zero amperes is showing on the GSC display for one or more AC phases while the
generator set is running and the load is connected. Separate fault isolation is provided for zero
voltage and zero current readings.
SYMPTOM
4.
Display Of Voltage on GSC is Zero For One or More Phases.
MALFUNCTION
GSC Malfunction.
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
0011-6
