Generac Power Systems G0071411, Owner'S Manual, Page: 38 / 42

Troubleshooting / Quick Reference Guide
34 Owner’s Manual for 60 Hz Air-Cooled Generators
Quick Reference Guide
To clear an active alarm, press the OFF mode button on the control panel, then the ENTER button, and finally the
AUTO mode button. Contact an IASD if the alarm reoccurs.
Active Alarm LED Problem Things to Check Solution
NONE
FLASHING
GREEN
Unit running in AUTO
but no power in house.
Check MLCB. Check MLCB. If it is ON, contact an IASD.
HIGH
TEMPERATURE
RED
Unit shuts down during
operation. Check the LEDs /
screen for alarms.
Check ventilation around the generator,
intake, exhaust, and rear of generator. If
no obstructions are present, contact an
IASD.
OVERLOAD
REMOVE LOAD
RED
Unit shuts down during
operation. Check the LEDs /
screen for alarms.
Clear alarm and remove household loads
from the generator. Put in AUTO and
restart.
RPM SENSE LOSS RED
Unit was running and
shut down, attempts to
restart.
Check the LEDs /
screen for alarms.
Clear alarm and remove household loads
from the generator. Put into AUTO and
restart. If generator does not start, contact
an IASD.
NOT ACTIVATED NONE
Unit will not start in
AUTO with utility loss. Check if screen says
unit not activated. Refer to “Activation” in installation
manual.
NONE GREEN
Unit will not start in
AUTO with utility loss. Check screen for start
delay countdown.
If the startup delay is greater than
expected, contact an IASD to adjust from
2 to 1500 seconds.
LOW OIL
PRESSURE
RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms. Check oil level and add oil as needed. If
oil level is correct, contact an IASD.
RPM SENSE LOSS RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Clear alarm. Using the control panel,
check the battery by navigating to the
BATTERY MENU option from the MAIN
MENU. If battery condition displays
GOOD, contact an IASD. If control panel
displays CHECK BATTERY, replace the
battery.
OVERCRANK RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Check fuel line shutoff valve is ON. Clear
alarm. Start the unit in MANUAL. If it does
not start, or starts and runs rough, contact
an IASD.
LOW VOLTS
REMOVE LOAD
RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Clear alarm and remove household loads
from the generator. Put in AUTO and
restart.
OVERSPEED RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Contact an IASD.
UNDERVOLTAGE RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Contact an IASD.
UNDERSPEED RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Contact an IASD.
STEPPER
OVERCURRENT
RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Contact an IASD.
MISWIRE RED
Unit will not start in
AUTO with utility loss. Check the LEDs /
screen for alarms.
Contact an IASD.