Troubleshooting
42 Owner’s Manual for Stationary Diesel Generators
Controller Troubleshooting
Active Alarm Problem Solution
NOT ACTIVATED Unit will not start in AUTO with utility loss. Refer to activation section in Owner’s Manual.
AUXILIARY SHUTDOWN Unit will not start in AUTO with utility loss. Verify both auxiliary shutdown switches are ON (I).
NONE Unit running in AUTO but no power in house. Check MLCB. Contact an IASD if MLCB is in the ON position.
NONE Unit will not start in AUTO with utility loss.
Check screen for start delay countdown. If the start up delay is
greater than expected, contact an IASD to adjust from 2 to 1500
seconds.
HIGH
TEMPERATURE
Unit shuts down during operation.
Check ventilation around the intake, exhaust and rear of gener-
ator. Contact an IASD if no obstruction is found.
OVERLOAD Unit shuts down during operation.
Clear alarm and remove household loads from the generator.
Put back in AUTO and restart.
RPM SENSE LOSS
Unit was running and shuts down, attempts to
restart.
Clear alarm and remove household loads from the generator.
Put back in AUTO and restart. If problem returns, contact an
IASD to investigate possible fuel issue.
LOW OIL
PRESSURE
Unit will not start in AUTO with utility loss.
Check oil level. Add oil per Owner’s Manual. Contact an IASD if
oil level is correct.
RPM SENSE LOSS Unit will not start in AUTO with utility loss.
Clear alarm. From the MAIN menu on the control panel, navi-
gate to the BATTERY MENU. Contact an IASD if battery is
GOOD. Replace battery If CHECK BATTERY is displayed.
OVERCRANK Unit will not start in AUTO with utility loss.
Clear alarm. Attempt to start the unit in MANUAL. If it does not
start or starts and runs rough, contact an IASD.
FUSE PROBLEM Unit will not start in AUTO with utility loss.
Check ATO 7.5 amp fuse. Replace with same type fuse if bad.
Contact an IASD if fuse is good.
OVERSPEED Unit will not start in AUTO with utility loss. Contact an IASD.
UNDER
VOLTAGE
Unit will not start in AUTO with utility loss. Contact an IASD.
UNDERSPEED Unit will not start in AUTO with utility loss. Contact an IASD.
MISWIRE Unit will not start in AUTO with utility loss. Contact an IASD.
OVERVOLTAGE Unit will not start in AUTO with utility loss. Contact an IASD.
LOW BATTERY Warning active.
Clear alarm. From the MAIN menu on the control panel, navi-
gate to the BATTERY MENU. Contact an IASD if battery is
GOOD. Replace battery If CHECK BATTERY is displayed.
BATTERY PROBLEM Warning active. Contact an IASD.
CHARGER WARNING Warning active. Contact an IASD.
SERVICE SCHEDULE A Warning active.
Perform SERVICE SCHEDULE A maintenance; press ENTER
to clear.
SERVICE SCHEDULE B Warning active.
Perform SERVICE SCHEDULE B maintenance; press ENTER
to clear.
SERVICE SCHEDULE C Warning active.
Perform SERVICE SCHEDULE C maintenance; press ENTER
to clear.
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