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Troubleshooting / Quick Reference Guide
32 Owner’s Manual for 60 Hz Air-Cooled Generators
Quick Reference Guide
To clear an active alarm, press the OFF button, the ENTER button, and then press AUTO. If the alarm reoccurs,
contact an IASD.
Active Alarm LED Problem Things to Check Solution
NONE 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 bat-
tery 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.
FUSE PROBLEM RED
Unit will not start in
AUTO with utility loss.
Check the LEDs /
screen for alarms.
Check the 7.5 amp fuse. If it is blown,
replace it with an ATO 7.5 amp fuse. If the
fuse is intact, contact an IASD.
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.
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