Kohler 5ECD Service Manual page 26

Code Fault Description
AF Auxiliary fault Input from a customer-supplied switch that closes when
the fault is active. The generator set shuts down 0.3
seconds after the fault is detected and will not start when
the fault is active (input is grounded). This protection
becomes active 3 seconds after crank disconnect.
CO-1* Carbon Sensor fault shutdown occurs because of the presence
monoxide of CO.
shutdown
CO-2* Carbon Shutdown occurs because of the presence of CO or
monoxide deteriorating emission-control components (such as the
shutdown catalyst).
CO-3* Carbon Shutdown occurs if communication is lost between the
monoxide CO sensor and the ADC.
sensor
shutdown
HE High engine Shutdown occurs if the engine coolant temperature
temperature exceeds the maximum temperature for more than
5 seconds. This protective becomes active after the
engine reaches the crank disconnect speed.
LCL Low coolant Not used.
level
LOC Loss of coolant Shutdown occurs 5 seconds after a loss of coolant
condition is detected. This protection becomes active
10 seconds after the engine has reached its stated crank
disconnect speed and remains active as long as the
generator run command is active.
Units with serial number 2199434 and later: In the
event of a shutdown because of the high exhaust
temperature switch, the ADC will display fault code LOC.
LOP Low oil Shutdown occurs if a low oil pressure condition exists for
pressure more than 5 seconds. This protective becomes active
30 seconds after the engine has reached crank
disconnect speed (30 second inhibit).
Note: The low oil pressure shutdown does not protect
against low oil level. Check the oil level at the engine.
26 Section 4 Controller
Check
Check the condition and operation of the
customer-supplied equipment
connected to the auxiliary fault input
P21-6.
Immediate service required. Contact
an authorized distributor/dealer for
service.
Ensure windows are open for proper
ventilation.
Operate the blower to expel dangerous
fumes.
Move the vessel away from other
vessels (as another vessel may be the
source for the presence of the CO).
Check the generator exhaust system
(see the O/M).
Immediate service required. Contact
an authorized distributor/dealer for
service.
Ensure windows are open for proper
ventilation.
Operate the blower to expel dangerous
fumes.
Move the vessel away from other
vessels (as another vessel may be the
source for the presence of the CO).
Check the generator exhaust system
(see the O/M).
Check the connections to the CO
sensor.
If connections are okay, replace the CO
sensor.
Contact an authorized distributor/dealer
for service.
Check for blocked air inlets and exhaust
outlets.
—
Check for a clogged seawater intake or
sea strainer.
Check for a damaged seawater pump
impeller.
Check the high exhaust temperature
switch, if equipped.
Check for leaks in the lubrication
system.
Check the oil level and add oil if the
level is low.
Check low oil pressure switch
connections and operation.
Check the oil pump and lubrication
system.
Refer to
Section
—
—
—
—
1.8
—
O/M
I/M
O/M
O/M
5.10
Engine
S/M
TP-6391 9/08