Kohler CH18 User Manual

Governor System
50 24 690 06 Rev. PKohlerEngines.com
THIRD AND FOURTH DESIGN GCU Blink Codes for Software Running Codes - Activated when engine is
running.
Failure Condition Possible Causes Response
Response
Time
LED Diagnostics
Yellow LED Green LED
Running Normally None BLINKS BLINKS
RPM Too High Mechanical bindage None ON BLINKS
RPM Too Low Mechanical bindage None ON BLINKS
Missing Pulse
(Normal RPM)
Faulty igniting
Faulty ignition wiring
BLINKS ON
Missing Pulse
(RPM Too High)
Faulty igniting
Faulty ignition wiring
ON ON
Missing Pulse
(RPM Too Low)
Faulty igniting
Faulty ignition wiring
OFF ON
Sleep Mode Left in run mode (key ON)
Power at GCU with no ignition
pulses
System Shutdown 30 Minutes OFF OFF
Watchdog Interrupt RFI interference Ground to kill,
close carb throttle
plate
N/A BLINKS OFF
Overtemp
Software bug
Lightning
Overspeed (Over
4500 RPM for 0.5
seconds sustained)
External noise on ignition input
Frozen carb throttle plate
DLA failure
Mechanical bindage 1 second
delay
ON OFF
Excessive Battery
Voltage
(> 18v for 0.5
seconds)
Open battery voltage on B+
24 V battery (Not Compatible
with system, 12 V battery only)
Ground to kill,
close carb throttle
plate
0.5
seconds
OFF OFF

Kohler CH18 Specifications

General

Compression Ratio	8.5:1
Fuel Type	Gasoline
Cooling System	Air-cooled
Ignition System	Electronic
Starter Type	Electric
Power	18 hp (13.4 kW)
Oil Capacity	1.4 L (1.5 qt)
Lubrication	Full Pressure