10 Common John Deere S240 Problems(With Solution)

The John Deere S240 is a popular lawn tractor known for its durability and reliability. However, like any piece of machinery, it can experience problems from time to time. 

In this post, we will be going over the most common issues that owners of the S240 have encountered, as well as their possible causes and solutions. Keep reading.

John Deere S240 Problems

John Deere S240 Problems

1. The engine won’t start

This is one of the most common problems that S240 owners face. There are several possible causes for this issue, including a dead battery, a faulty spark plug, or a clogged fuel filter. 

How to Fix

To fix this problem, check the battery connections and make sure they are clean and tight. 

Replace the spark plug if it is dirty or worn, and check the fuel filter for clogs. If the filter is clogged, replace it with a new one.

2. The Mower deck won’t engage

Another common issue with the S240 is that the mower deck will not engage. 

This can be caused by a variety of issues, including a broken belt, a faulty PTO switch, or a problem with the mower deck itself. 

How to Fix

To fix this problem, check the belt for wear or damage and replace it if necessary. Check the PTO switch and make sure it is working properly. 

If the switch is faulty, replace it with a new one. If the problem is with the mower deck itself, take it to a professional for repairs.

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3. Loss of power while mowing

Some S240 owners have reported experiencing a loss of power while mowing. 

This can be caused by a clogged air filter, a faulty spark plug, or a problem with the fuel system. 

How to Fix

To fix this problem, check the air filter and replace it if it is dirty. Replace the spark plug if it is dirty or worn. Finally, check the fuel system for any clogs or leaks.

Read John Deere Fuel Filter Not Full(3 Quick Ways To Fix)

4. Steering problems

The S240 is known for its smooth and responsive steering, but some owners have reported experiencing steering problems. 

This can be caused by a variety of issues, including worn steering components, a problem with the steering column, or an issue with the steering gears. 

How to Fix

To fix this problem, check the steering components for wear or damage and replace them if necessary. 

Check the steering column and gears for any signs of damage and take the tractor to a professional for repairs if necessary.

5. Hard to shift gears

Some S240 owners have reported that it is difficult to shift gears. This can be caused by a worn clutch, a problem with the transmission, or a problem with the shift lever. 

How to Fix

To fix this problem, check the clutch for wear or damage and replace it if necessary. 

Check the transmission and shift lever for any signs of damage and take the tractor to a professional for repairs if necessary.

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6. Blade won’t engage

Another common issue with the S240 is that the blade won’t engage. This can be caused by a variety of issues, including a broken belt, a faulty PTO switch, or a problem with the blade itself. 

How to Fix

To fix this problem, check the belt for wear or damage and replace it if necessary. Check the PTO switch and make sure it is working properly. 

If the switch is faulty, replace it with a new one. If the problem is with the blade itself, take it to a professional for repairs.

7. Oil leaks

Oil leaks can be a major problem for any piece of machinery, and the S240 is no exception. 

Oil leaks can be caused by a variety of issues, including worn or damaged oil seals, a problem with the oil filter, or a problem with the oil pump. 

How to Fix

To fix this problem, check the oil seals for wear or damage and replace them if necessary. Check the oil filter and make sure it is clean and tight. 

Check the oil pump and make sure it is working properly. If the pump is faulty, replace it with a new one.

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8. Electrical issues

The S240 is equipped with a variety of electrical components, including lights, gauges, and sensors. 

These components can experience problems from time to time, leading to electrical issues. 

These issues can be caused by a variety of issues, including faulty wiring, a problem with the alternator, or a problem with the battery. 

How to Fix

To fix this problem, check the wiring for any signs of damage or wear. 

Check the alternator and make sure it is working properly. Check the battery and make sure it is charged and in good condition.

9. Vibrations

Some S240 owners have reported experiencing vibrations while mowing. 

A variety of issues, including a problem with the tires, problem with the mower deck, or a problem with the engine can cause this. 

How to Fix

To fix this problem, check the tires for proper inflation and wear. Check the mower deck for any signs of damage or wear. Check the engine and make sure it is running smoothly.

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10. Noise

The S240 is known for its quiet operation, but some owners have reported experiencing noise while mowing. 

A variety of issues, including a problem with the mower deck, a problem with the blades, or a problem with the engine can cause this. 

How to Fix

To fix this problem, check the mower deck for any signs of damage or wear. 

Check the blades for any signs of damage or wear. Check the engine and make sure it is running smoothly.

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

Maintenance tips for John Deere S240 

Maintenance TaskFrequency
Check oil levelMonthly
Change oilAs recommended by manufacturer
Check air filterMonthly
Replace air filterAs needed
Check and clean spark plugMonthly
Replace spark plugAs needed
Check and clean fuel filterMonthly
Replace fuel filterAs needed
Check and adjust tire pressureMonthly
Check and tighten all bolts and nutsMonthly
Check and lubricate all moving partsMonthly
Check and clean mower deckMonthly
Check and clean bladesMonthly
Check and clean undercarriageMonthly
Check and clean battery terminalsMonthly
Check and clean PTO and all other electrical connectionsMonthly
Check and clean transmission and gear oilAs recommended by manufacturer
Check and clean hydraulic oilAs recommended by the manufacturer
Maintenance tips for John Deere S240 

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Final Remarks

The John Deere S240 is a reliable and durable lawn tractor, but it can experience problems from time to time.

By understanding the 10 common issues that S240 owners face, as well as their possible causes and solutions, you can keep your tractor running smoothly and enjoy many years of trouble-free mowing. 

If you are experiencing any of the problems mentioned above, be sure to take your tractor to a professional for repairs or John Deere support team

FAQ

What are some common issues reported with the John Deere S240 model?

Some common problems reported with the John Deere S240 may include engine starting issues, transmission problems, mower deck malfunctions, electrical system failures, and belt-related issues.

How can I troubleshoot engine starting issues with my John Deere S240?

If you’re experiencing engine starting problems, check the battery for a proper charge and clean any corrosion from the terminals.

Ensure that the fuel tank has enough fuel, and check the fuel filter for any clogs. 

What should I do if I encounter transmission problems with my John Deere S240?

If you’re experiencing transmission issues, such as difficulty shifting gears or loss of power, first check the transmission fluid level. Ensure it is at the appropriate level, and look for any signs of leakage.

How can I address mower deck malfunctions on my John Deere S240?

If you notice problems with the mower deck, such as uneven cutting or unusual noises, check for any debris or obstructions lodged underneath.

Ensure that the blades are sharp and properly aligned. It’s also crucial to inspect the drive belt and pulleys for any damage or wear. 

What can I do to troubleshoot electrical system failures with my John Deere S240?

If you’re experiencing electrical issues, start by checking the battery connections to ensure they are secure and clean.

Inspect the fuses and replace any blown fuses. Examine the wiring harness for any signs of damage or loose connections. 

How should I handle belt-related problems on my John Deere S240?

If you encounter belt-related problems, such as slipping, excessive wear, or breakage, start by inspecting the belts for any signs of damage or incorrect tension.

Adjust or replace the belt as necessary. Ensure that all pulleys are properly aligned and in good condition. 

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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.