Kohler 11CCFOZ - User Manual

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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:

T
Tamara BeltranSep 3, 2025
What should I do if my Kohler 11CCFOZ engine overheats?
- S
  Stephanie BrownSep 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.
B
Brian LarsonSep 1, 2025
Why is my Kohler Inverter engine lacking power?
- D
  David StaffordSep 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.
C
Caitlyn WalkerAug 31, 2025
What causes a Kohler 11CCFOZ to stop suddenly?
- D
  David JordanAug 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)).
A
Anthony WilsonAug 29, 2025
Why does my Kohler 11CCFOZ engine start but not continue running?
- T
  Tina DavisAug 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
Brandi MunozAug 27, 2025
How do I troubleshoot a Kohler 11CCFOZ with no AC output?
- A
  Amy FoxAug 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.
M
Marcus NicholsonAug 26, 2025
What to do if my Kohler 11CCFOZ Inverter cranks but won't start?
- M
  matthew21Aug 26, 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).
L
Lori PetersAug 25, 2025
How to fix a Kohler Inverter that won't crank?
- L
  lalvarezAug 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).
J
Jessica MichaelAug 22, 2025
What causes low output voltage on a Kohler Inverter?
- S
  Steven ChenAug 22, 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 11CCFOZ Specifications

General

Engine Displacement	80 cc
Fuel Type	Gasoline
Fuel Tank Capacity	0.8 gallons
Run Time at 50% Load	8.5 hours
Weight	46.3 lbs
Frequency	60 Hz
Rated Voltage	120V
Noise Level	68 dBA
Voltage	120V
Phase	Single Phase

Summary

Safety Precautions and Instructions

Accidental Starting Safety

Procedures to prevent unintentional engine startup and associated risks.

Battery Safety Precautions

Exhaust System Safety

Fuel System Safety

Hazardous Voltage and Electrical Shock

Warnings about electrical hazards and safe operating practices.

Moving Parts Safety

Guidelines to avoid injury from rotating components and machinery.

Section 1. Specifications

Section 2. Operation

Prestart Checklist

Essential checks before starting the generator set for optimal performance.

Starting Procedure

Step-by-step instructions for safely starting the generator set.

Engine Safety Shutdown Switches

Section 3. Scheduled Maintenance

Service Schedule

Periodic maintenance tasks and their recommended intervals.

Section 4. Troubleshooting

Engine Troubleshooting

Common engine problems and their corrective actions.

Generator Troubleshooting

Section 5. Wiring Diagrams

Section 6. Installation

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