Kohler 18RESL User Manual

TP-6519 8/1726 Section 3 Troubleshooting
Problem ReferenceCorrective ActionTestPossible Cause
Generator
set engine
does not
crank,
continued
Blown fuse F2 Use a test lamp or meter to check
fuse F2.
Replace fuse. Section 5.13.2.
If fuse blows again, disconnect
the following leads. Reconnect
one at a time and attempt to start
to identify the cause of the blown
fuse:
Lead 70A at the fuel valve
Lead IGN at the ignition module
Lead 71A at the starter relay
Leads FP and FN at the rotor
Repair or replace the component
causing the blown fuse.
Section 7
Crank relay K3 on
controller circuit
board
Check connections to the
controller.
Tighten connections.
Replace wiring if damaged.
Section 4.6
Check for a good ground
connection.
Tighten/repair ground connection.
Section 7
Check LED3 to verify 12VDC to
relay K3.
If LED3 is not lit, check for 12VDC
to the board.
If LED3 is lit but relay K3 does not
operate, replace the controller
circuit board.
Section 7
Section 4.6
Generator set
master switch
Check connections to the master
switch.
Tighten connections.
Replace wiring if damaged.
Section 4.2.1
Section 5.15
Test function of switch. Replace switch. Section 5.15
Poor ground (--)
connection
Test ground connection. Clean and retighten. —
Starter relay
Check connections to the starter
relay.
Tighten connections.
Replace wiring if damaged.
Section 1.7
Check continuity of circuit. Section 5.15
Section 7
Check that the starter relay picks
up when 12VDC is applied at lead
71A connection.
Replace starter relay.
Section 7
Starter
Check starter connections. Tighten connections.
Replace wiring if damaged.
Section 1.7
Section 7
Troubleshoot the starter. See the
engine service manual for
instructions.
Rebuild or replace starter. Engine S/M
Controller
Check the controller settings. Adjust controller settings. Section 4.5
Test the controller as described in
Section 3.4.
See Section 3.4. Section 3.4
Cranks but
does not
start
No fuel Verify that manual fuel valve is
open.
Check fuel supply tank (LP).
Open (turn on) manual fuel valve.
Contact fuel supplier to add fuel to
fuel supply tank (LP).
—
Insufficient fuel
pressure
Check fuel pressure to the
generator set. Verify adequate
fuel pressure and pipe size for the
generator set plus all other gas
appliances.
Contact fuel supplier to replace
fuel supply lines with larger pipe
and replace gas meter if fuel
pressure is insufficient.
Section 5.12.2
Fuel regulator/valve Check regulator/valve operation. Check regulator/valve operation. Section 5.12
Section 4
* ADC-RES controller only. The DC-RET controller settings cannot be adjusted in the field.
W/D = Wiring Diagram(s) (Section 7) S/S = Generator Set Specification Sheet O/M = Generator Set Operation Manual
I/M = Generator Set Installation Manual Engine S/M = Engine Service Manual

Kohler 18RESL Specifications

General

Brand	Kohler
Model	18RESL
Category	Portable Generator
Language	English