Troubleshooting - Kohler 4EOZ Service

8.4 Troubleshooting

Use the following flowcharts as an aid in troubleshooting
the main control panel and the entire generator set. If
the prescribed remedy does not correct the problem,
Push the on/off switch
(local or remote).
Are the two green LEDs and
the red LED (oil pressure) lit
on the control panel?
No
Is the 25 amp fuse okay?
No
Change
the fuse.
D Check the 0.63 amp fuse
on the control panel.
D Check the conditions of the
battery connections.
D Check the conditions of the
P1 connections (7-GND).
D Check the conditions of the
TB1 connections (7-GND).
D Check the conditions of the
P3 connections (7-GND).
D Check the conditions of the
1-2 connections on the
terminal board of
control panel.
D Are these checks okay?
Yes
Change the control panel.
Figure 8-6 Troubleshooting Relay Controller Control Panel (1 of 4)
TP-6137 5/03
Push the start switch (local
Yes
or remote).
Yes
D Check the conditions of the
K1 connections (5-GND).
D Check the conditions of the
K3 connections (5).
D Check the conditions of the
TB1 connections (5-GND).
D Check the conditions of the
P3 connections (5-GND).
D Check the conditions of the
2-6 connections on the
terminal
control panel.
the
D Reset
connections to energize
the coil of the K1 relay.
Change the control panel.
replace the control panel.
precautions in the beginning of this manual.
Does the
engine
crank?
No
Is the 12 DC voltage present
on the coil of the K1 relay?
No
Is current present on the
terminals of the solenoid (S)
of the starter engine?
D Check the conditions of the
S connections (9-GND).
D Check the conditions of the
P1 connections (9-GND).
D Check the conditions of the
TB1 connections (9-GND).
D Check the conditions of the
K1 connections (7-9).
D Check the conditions of the
TB1 connections (7-GND).
board of the
D Reset
connections to energize
the failed
the coil of the solenoid (S)
on the starter motor.
No
Section 8 Controller Troubleshooting
Consult the safety
Go to A
(next
Yes
page).
Yes
No
the failed
Is the current present on the
contacts of the S solenoid
(starter motor side)?
Yes
Change the starter motor.
Yes
47