13 Common Ferris FW15 problems(With Solutions)

Maintaining a lush and well-manicured lawn requires the right tools, and the Ferris FW15 lawn mower has gained popularity for its efficiency and performance.

However, like any piece of machinery, it’s not immune to issues that might arise during operation.

In this post, we will address common problems that users might encounter while using the Ferris FW15 lawn mower and provide practical solutions to ensure a seamless mowing experience.

Let’s jump in.

Ferris FW15 problems

1. Starting Issues

Understanding the Choke System: If your Ferris FW15 mower is difficult to start, it might be due to a misunderstanding of the choke system. Make sure you’re using the choke appropriately based on the weather conditions.

Checking the Fuel Quality: Poor-quality or old fuel can lead to starting problems. Always use fresh, clean fuel, and consider using fuel stabilizers.

2. Uneven Cutting

Blade Maintenance and Sharpness: Dull blades can result in uneven cutting. Regularly inspect and sharpen the blades to ensure a clean and precise cut.

Deck Height Adjustment: Incorrect deck height settings can lead to uneven cutting. Adjust the deck height according to your desired grass length.

3. Engine Overheating

Clearing Debris from the Engine: Debris buildup can cause the engine to overheat. Regularly clean the engine area to prevent overheating.

Cooling System Inspection: Check the cooling fins and radiator for any obstructions. A well-maintained cooling system will prevent overheating.

4. Loss of Power

Air Filter Examination: A clogged air filter restricts airflow, leading to power loss. Clean or replace the air filter as needed.

Spark Plug Health: Worn-out spark plugs can result in poor engine performance. Inspect and replace spark plugs if necessary.

Read Ferris Lawn Mower Troubleshooting(5 Common problems)

5. Excessive Vibration

Blade Balance Verification: Unbalanced blades can cause excessive vibration. Ensure that the blades are properly balanced.

Engine Mount Inspection: Check the engine mounts for wear and tear. Damaged mounts can contribute to vibration issues.

6. Uneven Steering

Tire Pressure Check: Incorrect tire pressure can affect steering. Maintain the recommended tire pressure for smooth operation.

Steering Linkage Inspection: Inspect the steering linkage for any damage or misalignment. Properly functioning steering is essential for an even cut.

7. Battery Problems

Charging and Maintenance: Keep the battery charged during the off-season and perform regular maintenance to extend its lifespan.

Battery Replacement: If the battery fails to hold a charge, consider replacing it with a compatible one.

8. Excessive Noise

Muffler and Exhaust System Check: A damaged muffler or exhaust system can contribute to noise. Inspect and replace if necessary.

Engine Component Tightness: Loose components can create vibrations and noise. Ensure all engine parts are securely fastened.

9. Oil Leaks

Identifying the Source of the Leak: Locate the source of the oil leak and address it promptly to prevent further issues.

Gasket and Seal Replacement: Worn-out gaskets and seals can cause leaks. Replace them to prevent oil seepage.

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10. Clogged Fuel System

Fuel Line Inspection: Check for clogs or blockages in the fuel line. Clean or replace the fuel line if needed.

Carburetor Cleaning: A clogged carburetor can affect engine performance. Regularly clean the carburetor to maintain smooth operation.

11. Ineffective Brakes

Brake Cable Adjustment: If the brakes are not responsive, adjust the brake cables to ensure proper engagement.

Brake Pad Examination: Worn brake pads reduce braking efficiency. Replace them to maintain safe braking.

12. Transmission Issues

Fluid Level Inspection: Check the transmission fluid level regularly and top it up if necessary.

Belt and Pulley Examination: Inspect the belts and pulleys for signs of wear. Replace them if they’re damaged.

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13. Electrical Malfunctions

Fuse and Wiring Inspection: Check the fuses and wiring for any signs of damage. Faulty electrical connections can lead to problems.

Component Grounding Check: Ensure that all electrical components are properly grounded to prevent malfunctions.

14. Rough Ride

Tire Condition Evaluation: Inspect the tires for wear or damage. Replace them if they’re in poor condition.

Suspension Component Inspection: Check the suspension components for any issues. Proper suspension ensures a smoother ride.

Read Lawn Mower Makes Grinding Noise When Trying to Start(Solved)

Storage and Maintenance 

Cleaning the Mower: After each use, clean the mower to prevent debris buildup. A clean mower operates more efficiently.

Proper Storage Practices: When storing the mower for an extended period, follow proper storage guidelines to maintain its condition.

Maintenance Tips for Ferris FW15

Maintenance TaskFrequencyDescription
Blade Inspection and SharpeningEvery 25 hours of useRegularly check the condition of the blades and sharpen them as needed for a clean cut.
Oil ChangeEvery 50 hours of useReplace the engine oil and oil filter to maintain proper lubrication and prevent engine wear.
Air Filter CheckEvery 25 hours of useInspect the air filter and clean or replace it to ensure proper airflow and engine performance.
Spark Plug ReplacementAnnuallyReplace the spark plug to promote efficient combustion and smooth operation.
Fuel System MaintenanceEvery 50 hours of useClean or replace the fuel filter and check fuel lines for any clogs or obstructions.
Cooling System InspectionEvery 25 hours of useCheck the cooling fins and radiator for debris and clean them to prevent overheating.
Belt and Pulley InspectionEvery 50 hours of useInspect belts and pulleys for wear and proper tension, and replace if necessary.
Tire Pressure CheckEvery 25 hours of useMaintain proper tire pressure for even cutting and a smooth ride.
Battery MaintenanceAnnuallyClean battery terminals, check electrolyte levels (if applicable), and charge as needed.
Cleaning and StorageAfter Each UseClean the mower after use to prevent debris buildup, and store it in a dry, covered area.

Read Riding Mower Making Noise When Blades Are Engaged(Fixed)

Final Remarks

Owning and operating a Ferris FW15 lawn mower can greatly simplify lawn maintenance.

By understanding and addressing common problems, you can ensure the longevity and effectiveness of your mower. Regular maintenance and prompt issue resolution will keep your lawn looking pristine with minimal hassle.


How often should I sharpen the mower blades?

Blades should be sharpened at least once a mowing season or more frequently if you notice a decrease in cutting quality.

Can I use regular gasoline on the mower?

Using unleaded gasoline with an octane rating of 87 or higher is recommended to prevent engine damage.

Why is my mower vibrating excessively?

Excessive vibration could be due to unbalanced blades, loose engine components, or a damaged blade spindle.

Is it necessary to remove the battery during the off-season?

Yes, removing the battery and storing it in a cool, dry place can prolong its lifespan and prevent discharge.

How can I prevent oil leaks from the engine?

Regularly check and replace worn gaskets and seals, and ensure proper tightening of engine components to prevent oil leaks.

Read Low Oil Symptoms in Lawn Mowers (Don’t Ignore These Signs)

George Bill
George Bill

George Bill is a Mechanical Engineer by Profession and an avid gardener and has been mowing his lawn for over 20 years. He has used a variety of different mowers during this time.
George is an expert at maintaining his mowers and over the years, he has learned many tricks and techniques for getting the best results from his mowers and is always happy to share his knowledge on this site.