Kohler 32EOZ Service Manual page 36

Does the engine continue
B
to run after the start
switch is released?
No
Does the K1
No
relay LED light?
Yes
Go to C
(next page)
Does the K5 relay LED
light after 5--10 seconds
of running time?
Did the K4 relay LED light?
Replace the circuit
Yes
board (inoperative
K1 or K2 relay)
Does the low oil pressure
(LOP) safety shutdown
switch function?
Yes
Use a mechanical gauge to
verify oil pressure. Does the
engine have proper oil
pressure?
No
Figure 6-5 Troubleshooting Relay Controller Circuit Board (3 of 4)
24 Section 6 Controller Troubleshooting
Yes
No
Replace the
Yes
circuit board (K5
relay inoperative)
No
Do the local and
remote start/stop
Yes
switches function?
Replace the inoperative
start/stop switch
Replace the LOP safety
No
shutdown switch
Yes
Check the oil level.
Repair/replace the oil
pump
Can the engine be stopped
by using the stop switch?
No
Did the K4 relay LED light?
No
Do the local and
remote start/ stop
switches
function?
Replace the
inoperative
Yes
start/stop
switch
Replace the
circuit board
Is the K25 relay functioning?
(K4 relay
inoperative)
No
Do the temperature
safety shutdown
switches function?
Replace the inoperative
No
temperature switch(es)
Yes
Generator set
checks out okay
Yes
Is the fuel solenoid
functioning?
No
Yes
Yes
Replace the circuit board
(inoperative K4 relay)
Replace the
circuit board
Yes
(inoperative K4
relay)
TP-5936 7/04
No
Replace
the fuel
solenoid
No
Replace
the K25
relay