Kohler 38RCLB

TP-6907 5/16 67Section 5 Troubleshooting
Fault Message CheckDescription/ CommentsAction
ECM O2SenseInpLo Warning Warning The ECM reported a low voltage error
for the Heated Exhaust Gas Oxygen
Sensor (HEGO).
Check the wiring to the HEGO
sensor.
Check that the ignition wires
are fully seated.
Check the ignition system,
HEGO sensor, and fuel
control valve for shorted
leads.
Check that vacuum hoses are
properly connected.
Check that the fuel regulator
is set for the correct fuel type
(NG or LPG).
Check that the wiring is
properly connected for the
type of fuel set by the fuel
regulator (NG or LPG).
Emerg Stop Shutdwn Shutdown The controller shut down the generator
because the emergency stop circuit
was tripped (open circuit).
Check E-stop circuit for open
switches, broken leads,
disconnected leads, etc.
Engine Speed High Shutdwn Shutdown The controller shut down the generator
because engine speed, as calculated
from AC frequency, was above the high
speed setting for 0.3 seconds or more;
or the ECM shut down the engine and
reported overspeed as the fault code.
Troubleshoot engine
operation per the engine
service manual.
Engine Speed Low Shutdwn Shutdown The controller shut down the generator,
after crank disconnect, because engine
speed, as calculated from AC
frequency, was below the low speed
setting for 3 seconds or more.
Troubleshoot engine
operation per the engine
service manual.
Exer Not Sch Warning Warning There is no exercise scheduled. Set the exercise schedule.
Frequency High Shutdwn Shutdown The controller shut down the generator
because the frequency measured on
Phase A exceeded the high frequency
setting for 10 seconds, 10 seconds or
more after crank disconnect.
Troubleshoot engine
operation per the engine
service manual.
Frequency Low Shutdwn [ Shutdown The controller shut down the generator
because the frequency measured on
Phase A was less than the low limit for
10 seconds or the measured frequency
was 10 Hz or more less than rated for
60 seconds or more, 10 seconds or
more seconds after crank disconnect.
Troubleshoot engine
operation per the engine
service manual.
Fuel Leak Shutdwn * Shutdown The controller shut down the generator
because the digital input for Fuel Tank
Leak Shutdown (PIM) was activated
(low).
Check customer equipment
connected to the PIM module.
Fuel Leak Warning * Warning The digital input for Fuel Tank Leak
Warning (PIM) is active (low).
Check customer equipment
connected to the PIM module.
Fuel Level CrHi Warning * Warning The digital input for Critically High Fuel
Level Wa rning (PIM) is active (low).
Check customer equipment
connected to the PIM module.
Fuel Level High Warning * Warning The digital input for High Engine Fuel
Level Wa rning (PIM) is active (low).
Check customer equipment
connected to the PIM module.
Fuel Level Low Shutdwn * Shutdown The controller shut down the generator
because the digital input for Low Fuel
Level Shutdown (PIM) was activated
(low).
Check customer equipment
connected to the PIM module.
* Programmable Interface Module (PIM) required
[ Applies during exercise runs and normal operation.