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Troubleshooting / Quick Reference Guide
Owner’s Manual for 60 Hz Air-Cooled Generators 35
Section 5: Troubleshooting / Quick Reference
Guide
Generator Troubleshooting
Problem Cause Correction
Engine will not
crank
Blown fuse.
Correct short circuit condition by replacing 7.5 A
fuse in generator control panel. Contact an IASD
if fuse continues to blow.
Loose, corroded, or faulty battery cables.
Tighten, clean, or replace as necessary.*Faulty starter contact.
Faulty starter motor.
Discharged battery. Charge or replace battery.
Engine cranks but
will not start
No fuel. Replenish fuel / turn on fuel valve.
Faulty fuel solenoid (FS).
Contact an IASD for assistance.
Harness/wiring issue.
Faulty spark plug(s).
Clean; inspect spark plug gap; replace spark
plug(s) if necessary.
Valve clearance out of adjustment, if
applicable. See Engine.
Inspect and adjust valve clearance.
Engine starts hard
and runs rough
Plugged or damaged air cleaner. Inspect and clean air cleaner.
Faulty spark plug(s).
Clean; inspect spark plug gap; replace spark
plug(s) if necessary.
Incorrect fuel pressure.
Verify fuel pressure to regulator is 10–12 in
water column (2.49–2.99 kPa) for LP gas, and
3.5–7.0 in water column (0.87–1.74 kPa) for NG.
Fuel selector in wrong position.
Set fuel conversion valve to correct position and
program controller for fuel type.
Valve clearance out of adjustment, if
applicable. See Engine.
Inspect and adjust valve clearance.
Internal engine issue. Contact an IASD for assistance.
Unit is set to OFF,
but engine
continues to run
Controller wired incorrectly.
Contact an IASD for assistance.
Faulty control board.
No AC output
from generator
Generator MLCB (generator disconnect) is
OFF (OPEN).
Set generator MLCB (generator disconnect) to
ON (CLOSED).
Generator internal failure. Contact an IASD for assistance.
Engine may be warming up. See Cold Smart
Start.
Check the controller screen to verify status.
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