Kohler 5E Service Manual page 37

Does the engine continue
B
to run after the start
switch is released?
No
Does the K1
No
relay LED light?
Yes
Does the K5 relay LED
light after 5--10 seconds
of running time?
No
Replace the circuit
board (the K5 relay
is inoperative).
Go to D
(next page).
Check the oil level.
Repair/replace the oil pump.
Replace the inoperative
temperature switch.
Figure 6-5 Troubleshooting Relay Controller Circuit Board (3 of 4)
TP-5986 4/03
Yes
C
Did the K4 relay LED light?
Yes
Yes
Is the K3 LED out?
No
Replace the circuit board
(the K6 relay is inoperative).
Replace the switch.
Replace the
circuit board
(inoperative
K4 relay).
Does using the stop switch
stop the engine?
No
Yes
Is the LOP switch
No
functional?
Replace
LOP switch.
Does the engine have proper oil
pressure? Use a mechanical
gauge to verify pressure.
No
Is the temperature
(HET) safety shutdown
No
switch functional?
Is the low coolant
No
switch functional?
Is the coolant level low?
No
Fill the cooling
system and check
for leaks.
Yes
The generator set is
functioning properly?
Yes
Yes
Yes
Yes
Yes
Section 6 Controller Troubleshooting 23