Kohler 17.5CCFOZ

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Marine Generator Sets

Models:

13.5CCOZ/11CCFOZ

18.5 CCOZ/15CCFOZ

21CCOZ/16.5CCFOZ

18CCFOZ

14CCOZ/11.5CCFOZ

20CCOZ/17.5CCFOZ

24CCOZ/20CCFOZ

1 Phase

and 3 Phase

TP-5592 7/96a

Operation and

Installation Manual

Table of Contents

Questions and Answers:

P
Paul GraySep 3, 2025
What should I do if my Kohler 17.5CCFOZ engine overheats?
- U
  ureyesSep 3, 2025
  If your Kohler Inverter engine is overheating, check the engine coolant level to ensure adequate cooling. Other possible solutions include replacing a defective thermostat, servicing a clogged air intake silencer, reducing the engine load if it's overloaded, adjusting or replacing a loose or defective cooling water pump belt, flushing the cooling system, and replacing a defective temperature switch. Also, check the water passage for cooling water leaks.
S
Shelby SmithSep 1, 2025
Why is my Kohler 17.5CCFOZ Inverter engine lacking power?
- J
  josephowenSep 2, 2025
  If your Kohler Inverter engine lacks power, several factors could be responsible. Check for a clogged air intake (service air intake silencer), bad or stale fuel (replace fuel), a restricted fuel line (check fuel lines), a dirty fuel filter (service fuel filter), an overloaded engine (reduce load), or an obstructed vent in the fuel tank cap (clean cap in solvent and blow dry). Also, inspect the cooling system for inadequate cooling.
A
Amanda AguilarAug 31, 2025
What causes a Kohler Inverter to stop suddenly?
- K
  Kimberly BrewerAug 31, 2025
  A Kohler Inverter might stop suddenly due to several reasons: * Being out of fuel (replenish fuel). * A clogged air intake (service air intake silencer). * A tripped circuit breaker in the controller (reset circuit breaker). * A defective seawater pump impeller (replace seawater pump impeller). * A clogged seawater strainer (clean strainer). * A fuel line restriction (check fuel lines and tank). * A dirty fuel filter (service fuel filter). It can also be caused by a defective low oil pressure (LOP) safety shutdown switch (replace LOP shutdown switch), high temperature shutdown (check engine coolant system for coolant level), or defective high exhaust temp. (HET) and/or high water temp. (HWT) safety shutdown switch(es) (replace HET and HWT shutdown switch(es)).
D
Dr. Jennifer SmithAug 29, 2025
Why does my Kohler Inverter engine start but not continue running?
- D
  Debra HansenAug 29, 2025
  If your Kohler Inverter engine starts but doesn't continue to run after releasing the start switch, it could be due to no generator output voltage (check AC voltage), a defective low oil pressure (LOP) safety shutdown switch (replace it), or a high temperature shutdown (check coolant level). Also, consider defective high exhaust temp. (HET) and/or high water temp. (HWT) safety shutdown switch(es) and replace them if needed.
B
Briana DixonAug 27, 2025
How do I troubleshoot a Kohler Inverter with no AC output?
- D
  Dr. Sherry CaseyAug 27, 2025
  If your Kohler Inverter has no AC output, verify the following: * Ensure the circuit breaker is in the ON position; if it's OFF, reset it. * If the circuit breaker tripped due to an overload, reduce the load and reset the breaker. * Confirm the ship-to-shore transfer switch is set to generator power, not OFF or SHORE. * Check if the controller circuit breaker has tripped and reset it if necessary.
R
Rebecca MurphyAug 26, 2025
What to do if my Kohler 17.5CCFOZ Inverter cranks but won't start?
- R
  ramoselizabethAug 27, 2025
  If your Kohler Inverter cranks but doesn't start, check these potential issues: * Make sure you're not out of fuel; if so, replenish it. * Check for any fault shutdowns and examine the shutdown switches. * Ensure the fuel shut-off valve is open. * Other possible causes include a defective fuel feed pump (replace it), a clogged fuel filter (service the filter element), or air in the fuel system (bleed the air). Also, consider water or dirt in the fuel system (drain and flush), incorrect fuel type (use the correct type), incorrect crankcase lube oil (use the correct lube oil), or a faulty fuel solenoid (replace it). Finally, check for a clogged air intake (clean or replace it), a faulty ground connection (clean and retighten), or a weak/dead battery (recharge or replace).
J
Jennifer MitchellAug 25, 2025
How to fix a Kohler 17.5CCFOZ Inverter that won't crank?
- P
  Peter GonzalezAug 25, 2025
  If your Kohler Inverter won't crank, possible causes include a weak or dead battery (recharge or replace it), reversed or poor battery connections (check and correct them), a tripped circuit breaker in the controller (reset it), a defective start/stop switch (check and replace if necessary), a defective starter solenoid (check and replace if necessary), or a defective starter (replace/repair as necessary).
C
Cameron Wilson DVMAug 23, 2025
What causes low output voltage on a Kohler 17.5CCFOZ?
- R
  Rebecca BrockAug 23, 2025
  If you're experiencing low output or an excessive voltage drop on your Kohler Inverter, try adjusting the governor if the engine speed is too low. If the generator is overloaded, reduce the load.

Kohler 17.5CCFOZ Specifications

General

AC Frequency	60 Hz
Fuel Type	Gasoline
Starter Type	Recoil
Rated Watts	1750 W
Starting Watts	2200 W
AC Voltage	120 V
Power Output	1750 watts

Summary

Safety Precautions and Instructions

General Safety Warnings

Covers DANGER, WARNING, CAUTION, NOTICE definitions and general precautions.

Fire and Explosion Hazards

Details fire risks from fuel, backfire, battery gases, and hot components.

Battery Specific Hazards

Focuses on hazards from battery acid, gases, and proper handling.

Exhaust and Gas Hazards

Addresses carbon monoxide hazards and safe exhaust system operation.

Fuel System Safety

Details safety precautions for handling fuel and preventing explosions.

Electrical and Noise Hazards

Warns about electrical shock dangers, grounding, backfeed, and hearing loss.

Moving Parts Hazards

Details safety precautions regarding rotating components and hazardous voltage.

Important Operational Notices

Specifications

General Specifications - 1-Phase Models

General Specifications - 3-Phase Models

Generator and Alternator Features

Generator Ratings - 1-Phase Models

Generator Ratings - 3-Phase Models

Engine Data Overview

Engine Specifications - 1-Phase Models

Engine Specifications - 3-Phase Models

Controller Features and Operation

Operation

Prestart Checklist

Provides a list of checks to perform before starting the generator set.

Exercising the Generator Set

Controller Operation

Starting and Stopping Procedures

Details the steps for starting and shutting down the generator set.

Maintenance

General Maintenance Guidelines

Covers general maintenance precautions and recommendations.

Scheduled Maintenance Overview

Outlines the recommended maintenance tasks and intervals.

Lubrication System Maintenance

Covers oil checks, changes, and filter replacement procedures.

Fuel System Maintenance

Covers fuel filter replacement and bleeding the fuel system.

Cooling Systems Maintenance

Details heat exchanger, coolant, seawater pump, and siphon break maintenance.

Generator Service and Wattage Requirements

Troubleshooting

Engine Troubleshooting Guide

Lists common engine problems, their causes, and corrective actions.

Electrical System Troubleshooting

Troubleshoots issues with battery charging, starter, and output voltage.

Generator Troubleshooting

Diagnoses causes for lack of AC output or voltage issues.

Wiring Diagrams

4-Lead Voltage Reconnection

12-Lead Voltage Reconnection

Installation

Installation Introduction and Guidelines

Location and Mounting Considerations

Ventilation Requirements

Fuel System Installation

Covers fuel supply arrangements, lines, filters, and anti-siphon provisions.

Cooling Systems Installation

Exhaust Systems Installation

Electrical Systems Installation

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