Kohler 4EFCD-Low CO Service Manual

TP-6391 9/0818 Section 3 Troubleshooting
Troubleshooting Chart
Problem Possible Cause Corrective Action Reference
Generator
d
Weak or dead battery Recharge or replace battery. Generator O/M
set does
n
o
t
c
r
a
n
k
Battery connections Check for reversed or poor battery connections. —
no
t
cran
k
Open circuit in engine/controller
connections
Check for loose connections.
Check the wire harness continuity.
Section 7
Blown fuse F2, controller Replace fuse; if fuse blows again, check circuit and
components.
Section 5.12
Section 7
Blown fuse F2, relay interface
b
d
(
R
I
B
)
Replace fuse. Section 5.12
,
y
board (RIB)
If fuse blows again, disconnect the board leads one at a
time to identify the cause of the blown fuse:
Lead 70A
Leads FP and FN at the rotor
Repair or replace the component causing the blown
fuse.
Section 7
If fuse continues to blow and the previous step did not
identify the cause, check the continuity of leads FP and
FN and the leads from the P14 connector. Replace any
bad leads. Use a pin pusher, part #241918 (large) or
241919 (small) to remove leads from the connector, if
necessary. If replacing the leads does not solve the
problem, replace the RIB.
Section 7
Section 4.6
Crank relay on relay interface
board (RIB)
Check connections to the RIB. Check for 12VDC to the
RIB on lead 71N.
Section 4.6
Section 7
Check for a good ground connection (lead N). Section 7
Check crank relay K2 operation (LED3). Replace the
RIB if relay does not operate.
Section 4.6
Generator set master switch
Check connections to the master switch on the
ADC 2100.
Section 4.3
Section 5.13
Test function of switch. Section 5.13
Poor ground (--) connection Clean and retighten. —
Starter
Check starter connections. Section 7
Rebuild or replace starter. Engine S/M
Controller Check controller connections and operation. Check for
power to the controller. Move generator set master
switch to OFF/RESET and then to RUN.
Section 4
Section 7
BlownF3fuse Verify line circuit. Section 7
BlownF6fuse Check voltage regulator wiring. Section 7
BlownF7fuse Check wiring for open grounds or loose connections.
Also, check for pushed out pins.
Section 7

Kohler 4EFCD-Low CO Specifications

General

Brand	Kohler
Model	4EFCD-Low CO
Category	Marine Equipment
Language	English