ENGINE UNDER SPEED
UnclassifiedCooling
What This Code Means
Battery fail alarm; Automatic engine shutdown; Engine fails to start; Low oil pressure; High engine temp; High coolant temp; Engine over speed; Low Radiator Level; Low coolant level; Engine under speed; Over voltage; Under voltage; Over-excitation; High ambient temp; Generator electrical system protection triggered; Voltage regulation failure; LCD alarm indicator active
Possible Causes
- •Battery failure
- •Low oil pressure
- •High engine temperature
- •Engine over speed
- •Low radiator level
- •Engine under speed
- •Over voltage
- •Under voltage
- •Engine fail to start sequence
- •High engine temp
- •Low Radiator Level
- •Over-excitation
- •Battery fail
- •Oil pressure drop below safety threshold
- •Cranking cycle completed without ignition
- •Engine temperature exceeding safety limits
- •Engine RPM exceeding rated speed limits
- •Insufficient coolant in radiator
- •Engine RPM falling below rated speed limits
- •AC output voltage outside of regulated 1% range
Suggested Actions
- 1Automatic engine shutdown
- 2Under-speed protection
- 3Check battery tray, cables, and 3-stage battery charger
- 4Over-excitation protection
- 5Shut-down sensor activation
Related Gillette Generators Fault Codes
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