Kohler 4EF Operation

TP-5985 10/02
24 Section 4 Troubleshooting
Trouble Symptoms
Does not
crank
Cranks but
does not start
Starts hard
No or low
output v oltage
Stops
suddenly
Lacks power
Overheats
Low oil
pressure
High fuel
consumption
Excessive or
abnormal noise
Probable Causes Recommended Actions
Section or
Publication
Reference*
Controller
x
Controller start/stop switch in the STOP position
Move the controller start/stop switch to the START position. Section 2
x x x
Controller fuse blown Replace the blown controller fuse. If the fuse blows again,
troubleshoot the controller.[
Section 2, W/D
x x Controller circuit breaker tripped Reset the controller circuit breaker. Section 2 x
Controller master or start/stop switch inoperative
Replace the controller master or start/stop switch. —
x Controller fault
Troubleshoot the controller.[
Gen. S/M
x x Controller circuit board(s) inoperative Replace the controller circuit board. Gen. S/M
Cooling System
x x Air openings clogged Clean the air openings. — x Impeller inoperative Replace the impeller Section 3 x x Seawater strainer clogged or restricted Clean the strainer. Section 3
x
High temperature shutdown Allow the engine to cool down. Then troubleshoot the cooling
system.
Sec. 3, Eng. O/M
x
Low coolant level shutdown, if equipped
Restore the coolant to normal operating level. Section 3
x Coolant level low Restore the coolant to normal operating level. Section 3 x Thermostat inoperative Replace the thermostat. Eng. S/M
* Sec./Section—numbered section of this manual; ATS—Automatic Transfer Switch; Eng.—Engine; Gen.—Generator Set; I/M—Installation Manual; O/M—Operation Manual; S/M—Service Manual;
S/S—Spec Sheet; W/D—Wiring Diagram
[ Have an authorized service distributor/dealer perform this service.

Kohler 4EF Specifications

General

Brand	Kohler
Model	4EF
Category	Portable Generator
Language	English