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Kohler 18RES Generator Set

The Kohler 18RES is a 14 kW (14 kVA) Natural Gas/LP Vapor standby generator set powered by a Kohler CH980 4 Cycle engine. It operates at 50 Hz. It holds about 2.8 L (0.7 gal) of oil.

14 kW
Standby
0.999 L
Displacement
2.8 L
Oil capacity
6
Document types

How to read your Kohler serial & model number →

Specifications

FuelNatural Gas/LP Vapor
Frequency50.0 Hz
Standby power14 kW
Standby kVA14
EmissionsEPA phase 2
ControllerADC-RES Advanced Digital, DC-RET Digital, Kohler-DC-RET Digital
Oil capacity2.8 L

Engine

Kohler CH980 4 Cycle
Oil capacity2.8 L
Displacement0.999 L
Rated speed3600 rpm

Maintenance & consumables

for the Kohler CH980 4 Cycle
ItemSpecCapacityPart #Interval
Air filterreplaceable, high density paper air cleaner element150 hr find
Oil filter200 hr find
Oil2.8 L150 hr

Common questions

What is the power rating of the Kohler 18RES?

The Kohler 18RES is rated 14 kW standby (14.0 kVA).

What engine does the Kohler 18RES use?

The Kohler 18RES is powered by the Kohler CH980 4 Cycle engine.

What fuel does the Kohler 18RES use?

The Kohler 18RES runs on Natural Gas/LP Vapor.

What is the oil capacity of the Kohler 18RES?

The Kohler CH980 4 Cycle engine in the Kohler 18RES has an oil capacity of 2.8 liters.

Troubleshooting

10

Fault codes

CodeMeaning
High engine temperatureEngine runtime, hours
Low battery voltageCrank cycle status
OvercrankRemote two-wire start/stop capability
OverfrequencyDigital voltage regulation: ±1.5% RMS no-load to full-load
OverspeedAutomatic start for programmed cranking cycle
UnderfrequencyMaster control switch mounted on the junction box: Run/Off-Reset/Auto
UndervoltageUpgradeable application software

Symptoms & remedies

SymptomCauseRemedy
Severe electrical equipment damage.Welding the generator set.Never weld components of the generator set without first disconnecting the battery, controller wiring harness, and engine electronic control module (ECM).
Accidental startingDisconnect the battery cables before working on the generator set. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery.
Battery short circuitDisconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. Never connect the negative (--) battery cable to the positive (+) connection terminal of the starter solenoid. Do not test the battery condition by shorting the terminals together.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

12
Part #DescriptionQtySystem
223316Fuse, 10 A, 250 V5Fuse buy
25 158 08-SBushing, linkage retaining4Bushing buy
25 435 06-SKit, starter solenoid1Kit buy
292937Fuse, 20 A, 250 V5Fuse buy
358358Coupling, stepper motor4Coupling buy
52 050 02-SFilter, oil8Oil filter buy
52 099 08-SSwitch, oil pressure1Sensor buy
62 083 01-SElement, air filter1Air filter element buy
62 132 04-SSpark plug2Spark plug buy
GM28823Sensor, oil temperature1Sensor buy
RSP-FT-03-US-01Pack first: complete service kit comprising air filter, air pre filter, spark plugs and oil filter.Air filter buy
RSP-FT-05-US-01Pack first: complete service kit comprising air filter, air pre filter, spark plugs and oil filter.Air filter buy

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Null25%93.0
Null50%124.0
Null75%163.0
Null100%193.0
Standby25%
Standby50%
Standby75%
Standby100%

Available documents

BrochureSpec sheetInstallation manualReferenceOwner's manualParts manual