Makita 18V Brushless Circular Saw Not Working

Last Updated On October 10, 2023

The Makita 18V brushless circular saw may not be working due to a possible power supply issue or a malfunctioning motor. The Makita 18V brushless circular saw is a powerful tool that provides precise cutting for various woodworking projects.

However, if you are encountering difficulties with your circular saw not working, it can hinder your progress and delay your projects. Identifying the cause of the problem is crucial to resolve the issue and get your saw functioning properly again.

We will explore some potential causes of the problem, troubleshooting steps to take, and possible solutions to get your Makita 18V brushless circular saw up and running efficiently. By following these steps, you can quickly troubleshoot and fix the issue, saving you time and hassle in the long run.

Understanding The Key Components Of The Makita 18V Brushless Circular Saw

The Makita 18V Brushless Circular Saw may encounter issues that prevent it from working properly. Understanding the key components of this tool can help troubleshoot and resolve any problems.

The Makita 18V Brushless Circular Saw is a powerful and versatile tool that can make your cutting tasks a breeze. It is essential to understand the key components of this saw to ensure its optimal performance and durability. In this section, we will delve into the brushless motor technology, the battery and power management system, and the blade mechanism and safety features.

Overview Of The Brushless Motor Technology:

  • Brushless motor technology eliminates the need for carbon brushes typically found in traditional motors, resulting in reduced friction and increased efficiency.
  • This advanced technology provides longer tool life, longer run time on batteries, and delivers more power for tougher cutting applications.
  • The absence of brushes means less maintenance as there are no components that wear down over time, making the saw more durable and reliable.

Exploring The Battery And Power Management System:

  • The Makita 18V Brushless Circular Saw is powered by an 18V lithium-ion battery, known for its high performance and prolonged runtime.
  • The battery and power management system is optimized to deliver maximum power and efficiency, ensuring consistent and reliable performance throughout your cutting tasks.
  • With its intelligent charging system, the battery can be fully charged in a short amount of time, minimizing downtime during your projects.

Understanding The Blade Mechanism And Safety Features:

  • The blade mechanism of the Makita 18V Brushless Circular Saw is designed for quick and easy blade changes, allowing you to switch between different types of cuts effortlessly.
  • The saw incorporates safety features such as an electric brake, which stops the blade from spinning immediately when the trigger is released, ensuring user safety.
  • Additionally, the saw is equipped with a blade guard that covers the blade when not in use, preventing accidental contact and minimizing the risk of injuries.

The Makita 18V Brushless Circular Saw combines advanced brushless motor technology, a reliable battery and power management system, and a user-friendly blade mechanism with safety features. Understanding these key components will help you make the most of this exceptional tool, ensuring efficient and safe cutting operations.

So, whether you’re a professional contractor or a DIY enthusiast, the Makita 18V Brushless Circular Saw is a must-have addition to your toolbox.

Identifying The Signs That Your Makita 18V Brushless Circular Saw Is Not Working

Noticing certain signs can help you identify if your Makita 18V Brushless Circular Saw is not functioning properly. Be alert to unusual noises, decreased cutting power, or excessive vibration during operation.

If you’re encountering issues with your Makita 18V Brushless Circular Saw, it’s important to quickly identify the signs that indicate it’s not working as expected. Being able to pinpoint these problems will help you diagnose and resolve the issue more efficiently.

Here are some common signs to watch out for:

No Power Or Sudden Power Loss During Operation:

  • The saw fails to turn on when you press the power button.
  • Power to the saw is intermittent or cuts out unexpectedly during operation.
  • The saw doesn’t respond when you engage the trigger.

Blade Not Spinning Or Spinning Inconsistently:

  • The blade doesn’t rotate at all when the saw is turned on.
  • The blade spins slower or faster than usual.
  • The blade stutters or stops spinning abruptly while in use.

Unusual Sounds Or Vibrations While Using The Saw:

  • You notice grinding, rattling, or squeaking sounds when operating the saw.
  • The saw emits excessive vibration while in use.
  • The motor produces an abnormal buzzing noise.

Saw Not Cutting Through Materials Effectively:

  • The saw struggles to cut through materials it could easily handle before.
  • The blade leaves uneven or jagged cuts.
  • Excessive friction or resistance is felt when trying to cut through materials.

Remember, if you encounter any of these signs, it’s important to address the issue promptly to avoid further damage and ensure safe operation.

1. Battery And Power-Related Problems

If your Makita 18V brushless circular saw is not working, it may be due to battery and power-related problems. Ensure that the battery is charged properly and that there are no issues with the power source. Troubleshooting these areas can help resolve the issue and get your circular saw back up and running.

Battery Not Fully Charged Or Draining Quickly:

  • One of the common problems with the Makita 18V Brushless Circular Saw is related to the battery. If the battery is not fully charged or drains quickly, it can significantly affect the saw’s performance. Here are a few points to consider:
  • Check the battery charge level: Ensure that the battery is fully charged before using the circular saw. Sometimes, a partially charged battery may not provide enough power for the tool, resulting in poor performance.
  • Proper charging and maintenance: Follow these tips to ensure proper battery charging and maintenance:
  • Use the recommended charger: It is essential to use the charger specifically designed for the Makita 18V Brushless Circular Saw battery. Using a different charger may lead to incorrect charging, affecting the battery’s overall health.
  • Charge in the right environment: Choose a clean, dry, and well-ventilated area for charging the battery. Avoid exposing the battery to extreme temperatures or humidity, as it can impact the battery’s performance.
  • Avoid overcharging: Once the battery is fully charged, unplug it from the charger. Overcharging can lead to decreased battery life and potential damage.
  • Troubleshooting battery issues and replacement: If you’re still experiencing problems after ensuring proper charging and maintenance, it might be necessary to troubleshoot the battery or consider replacing it. Here are a few steps to follow:
  • Clean the battery terminals: Remove the battery from the circular saw and wipe the terminals with a clean cloth. Dust, debris, or corrosion on the terminals can hinder electrical connections and affect battery performance.
  • Check for loose connections: Ensure that the battery is securely inserted into the saw. Loose connections can prevent proper power transmission, causing the saw to malfunction.
  • Test with another battery: If possible, try using a different fully charged battery to check if the problem persists. If the second battery works fine, it indicates that the original battery might indeed be the issue.

Power Switch Or Trigger Malfunction:

  • Another potential cause of the Makita 18V Brushless Circular Saw not working is a malfunctioning power switch or trigger. To address this problem, follow these steps:
  • Inspect the power switch or trigger: Check for any visible damage, debris, or loose connections around the power switch or trigger. Sometimes, dirt or debris can obstruct the switch’s functionality or affect the trigger’s responsiveness.
  • Clean the switch or trigger: If you notice any dirt or debris, use a soft brush or compressed air to clean around the power switch or trigger. Ensure that the switch or trigger is free from any obstructions that might hinder its proper operation.
  • Test the switch or trigger: Press the power switch or trigger to see if it engages properly. If there is no response or the switch feels loose, it might be necessary to repair or replace the faulty component.
  • Consult a professional: If you are unsure about how to repair or replace the power switch or trigger, it is best to seek guidance from a professional to avoid any further damage.

Safety Precautions While Handling Electrical Components:

  • When dealing with electrical components like batteries, power switches, or triggers, it is crucial to adhere to specific safety precautions:
  • Always disconnect the battery: Before performing any maintenance or troubleshooting tasks, disconnect the battery from the saw, ensuring no power is flowing to prevent accidental activation.
  • Use proper protective equipment: Wear appropriate safety gear, including gloves and safety glasses, to protect yourself while working with electrical components.
  • Avoid exposing components to moisture: Keep all electrical components dry, as moisture can cause damage and potentially lead to electrical shock.
  • Refer to the user manual: Always refer to the user manual for specific safety instructions and precautions provided by the manufacturer for your Makita 18V Brushless Circular Saw model.

Remember, by following these guidelines and taking necessary precautions, you can troubleshoot battery-related problems, address power switch or trigger malfunctions, and ensure safe handling of electrical components with your Makita 18V Brushless Circular Saw.

2. Mechanical And Blade-Related Problems

The Makita 18V brushless circular saw may encounter mechanical and blade-related issues, resulting in it not working properly. These problems can include issues with the motor, gears, blade alignment, or dull blades. Make sure to troubleshoot and address these problems to restore the functionality of the saw.

Cluttered Or Dull Blade Causing Cutting Difficulties:

A common reason for a Makita 18V Brushless Circular Saw not working properly is a cluttered or dull blade. Over time, debris such as sawdust and wood chips can accumulate on the blade, affecting its cutting performance. Additionally, a dull blade can result in uneven or jagged cuts.

Here are some steps to address this issue:

  • Thoroughly clean the blade: Start by disconnecting the circular saw from the power source. Using a brush or compressed air, remove any sawdust and debris from the blade. Make sure to clean both sides of the blade and the gaps between the teeth.
  • Check for dullness: Inspect the blade for any signs of dullness, such as chipped or worn-out teeth. If the blade is excessively dull, it may need to be sharpened or replaced.
  • Sharpen the blade: If the blade is still in good condition but dull, you can sharpen it using a blade sharpener or take it to a professional blade sharpening service. Follow the manufacturer’s instructions for sharpening the blade.
  • Replace the blade: If the blade is severely damaged or cannot be sharpened effectively, it’s best to replace it with a new one. Choose a compatible blade for your Makita 18V Brushless Circular Saw, considering factors like blade diameter, teeth type, and material compatibility.

Recommendations For Choosing The Right Blade For Various Materials:

Using the correct blade for the material you are cutting is crucial for achieving optimal results with your Makita 18V Brushless Circular Saw. Here are some considerations and recommendations for choosing the right blade:

  • Material compatibility: Different blades are designed for specific materials, such as wood, metal, or masonry. Ensure you select a blade that is suitable for the material you will be cutting to maximize performance and minimize blade wear.
  • Blade type and teeth configuration: Blades feature different tooth configurations, including rip teeth, crosscut teeth, and combination teeth. Choose a blade with the appropriate tooth design based on the type of cuts you need to make.
  • Blade diameter: The blade diameter should match the saw’s specifications. Using the wrong blade diameter can lead to wobbling, poor cutting performance, and safety risks.
  • Consider the cutting depth: If you commonly work with thicker materials, opt for a blade with a larger cutting depth capacity. It ensures smooth and accurate cuts without straining the tool or compromising safety.

Motor Or Gear Issues Causing Blade Irregularities:

When your Makita 18V Brushless Circular Saw exhibits irregularities in blade movement or lacks power, it could be due to motor or gear problems. Here are some troubleshooting steps to diagnose and address these issues:

  • Check for loose connections: Ensure that the power cord and battery are securely attached to the saw. Loose connections can disrupt power transfer and result in irregular blade movement.
  • Inspect the motor brushes: Over time, the motor brushes, which conduct electricity to the motor, can wear out or become dirty. If they appear worn or covered in debris, they may need to be replaced or cleaned.
  • Examine the gears: Inspect the gears for signs of damage or excessive wear. Worn-out gears can cause issues with blade rotation. If damaged, the gears should be replaced.

Troubleshooting Steps To Diagnose Motor Or Gear Problems:

To identify motor or gear problems that may be affecting your Makita 18V Brushless Circular Saw, follow these troubleshooting steps:

  • Check for unusual noises: Listen for any abnormal sounds, such as grinding, squealing, or clicking, which can indicate motor or gear issues.
  • Test the saw with a different blade: Swap out the current blade with a known working blade to determine if the issue lies with the motor or gears. If the problem persists with the new blade, it suggests a motor or gear problem.
  • Check for smooth blade movement: Start the saw without the blade and observe the rotational movement of the spindle. If it appears jerky or uneven, it could be a sign of motor or gear problems.

How To Repair Or Replace Faulty Motor Or Gear Components:

If you’ve determined that the motor or gear components of your Makita 18V Brushless Circular Saw are faulty, here’s how you can repair or replace them:

  • Seek professional assistance: Repairing or replacing motor or gear components may require specialized knowledge and tools. Consider consulting a professional or contacting Makita’s customer service for assistance.
  • Follow manufacturer’s instructions: If you are comfortable with DIY repairs, refer to the user manual or official manufacturer’s guide for step-by-step instructions on repairing or replacing motor or gear components.
  • Order genuine replacement parts: If specific components need replacement, make sure to use genuine Makita replacement parts to ensure compatibility and maintain quality performance.

Remember, if you are unsure about tackling motor or gear repairs yourself, it’s best to seek professional help to avoid further damage or safety hazards.

3. Safety And Maintenance Considerations

Discover essential safety and maintenance considerations for the Makita 18V Brushless Circular Saw, especially if it’s not working as expected. Learn how to troubleshoot and address common issues to ensure safe and efficient operation.

Proper Usage And Handling Of The Circular Saw:

  • Hold the circular saw firmly with both hands while operating.
  • Ensure that the blade guard is in place and functioning properly.
  • Use the appropriate blade for the materials you are cutting.
  • Adjust the depth of the blade according to the thickness of the material.
  • Always wear safety goggles, ear protection, and gloves when using the circular saw.

Safety Measures To Prevent Accidents And Injuries:

  • Keep the work area clean and free from clutter to avoid tripping hazards.
  • Use clamps or other securing methods to firmly hold the material you are cutting.
  • Do not overload the saw or force it through the material.
  • Disconnect the battery before changing the blade or performing any maintenance.
  • Avoid cutting near electrical wires or other potential hazards.

Maintenance Tips For Optimum Performance And Longevity:

  • Store the circular saw in a clean and dry place when not in use.
  • Regularly inspect the saw for any loose or damaged parts and have them repaired or replaced as necessary.
  • Check the battery charge and replace it if it no longer holds a charge.
  • Sharpen or replace the blade when it becomes dull to ensure clean and efficient cuts.
  • Avoid exposing the saw to extreme temperatures or moisture.

Importance Of Regular Cleaning And Lubrication:

  • Cleaning the saw regularly helps remove dirt, debris, and sawdust that can affect its performance.
  • Lubrication helps reduce friction and wear on the moving parts, extending the life of the saw.
  • Regular maintenance ensures that the saw operates smoothly and efficiently.

Steps To Clean And Lubricate The Saw For Smooth Operation:

  • Disconnect the battery and unplug the saw if corded.
  • Use a brush or compressed air to remove dust and debris from the saw.
  • Wipe down the surfaces with a clean, dry cloth to remove any remaining residue.
  • Apply a few drops of lubricating oil to the moving parts, such as the blade guard hinges and depth adjustment mechanism.
  • Reassemble the saw and test it to ensure proper operation.

Recommended Maintenance Schedule And Practices:

  • Clean the saw after each use to prevent build-up of sawdust and debris.
  • Inspect the saw for any damage or wear before each use.
  • Replace the blade when it becomes dull or damaged.
  • Lubricate the moving parts every few months, or as needed.
  • Store the saw in a safe and dry place when not in use.

By following these safety and maintenance considerations, you can ensure the proper operation and longevity of your Makita 18V Brushless Circular Saw.

Seeking Professional Help For Makita 18V Brushless Circular Saw Repairs

When your Makita 18V brushless circular saw is not working properly, it’s best to seek professional help for repairs. Expert assistance ensures your saw is fixed correctly, allowing you to continue with your projects efficiently.

Experiencing issues with your Makita 18V Brushless Circular Saw? It can be frustrating when your trusty power tool stops working properly. While some minor malfunctions can be fixed at home, there are times when it’s best to enlist the help of professionals.

Here’s when you should consider reaching out to Makita customer support or authorized service centers:

When To Contact Makita Customer Support Or Authorized Service Centers:

  • Unanticipated power failure: If your Makita 18V Brushless Circular Saw suddenly stops working and you’ve already checked the battery’s charge and power connections, it might be time to contact Makita customer support or an authorized service center. They can provide guidance on troubleshooting the issue and can help identify any underlying problems.
  • Motor or mechanism malfunction: When you notice unusual noises or vibrations coming from your circular saw, it’s a red flag that something might be wrong with the motor or mechanism. Seeking professional help is crucial to prevent further damage or safety hazards.
  • Faulty safety features: In the event that the safety features on your Makita 18V Brushless Circular Saw are not functioning correctly, it is vital to contact Makita customer support or an authorized service center for assistance. Proper safety precautions should never be compromised.

What To Expect From Professional Repairs And Service:

  • Expert diagnosis: One of the primary benefits of seeking professional help is receiving an accurate diagnosis of the issue. Trained technicians have the expertise to identify the root cause of the problem and provide the most suitable solution.
  • Quality repairs and genuine spare parts: When you turn to Makita customer support or authorized service centers, you can expect top-notch repairs using genuine Makita spare parts. This ensures the longevity and optimal performance of your circular saw, giving you peace of mind.
  • Timely service: Authorized service centers are equipped with the necessary tools and knowledge to efficiently carry out repairs. This means you can expect a timely turnaround so that you can get back to using your Makita 18V Brushless Circular Saw without significant delays.

Importance Of Following Warranty Guidelines And Terms:

  • Preserving warranty coverage: Adhering to the warranty guidelines and terms is crucial to ensure you don’t void any coverage. Attempting to repair the circular saw yourself or seeking assistance from unauthorized sources can invalidate your warranty, leaving you responsible for the cost of repairs.
  • Relying on manufacturer expertise: Makita customer support and authorized service centers possess the manufacturer’s expertise and understanding of their products. By relying on them for repairs, you can be confident that your circular saw is in the hands of professionals who are knowledgeable about Makita power tools.
  • Long-term cost savings: While professional repairs may require an investment upfront, it can save you money in the long run. Opting for professional assistance ensures that the repairs are done correctly, preventing further damage that could lead to more expensive fixes down the line.

Remember, reaching out to Makita customer support or authorized service centers is often the best course of action when your Makita 18V Brushless Circular Saw encounters issues beyond your expertise. By following warranty guidelines and seeking professional help, you can keep your circular saw in excellent working condition, ensuring its longevity and optimal performance.

Makita 18V Brushless Circular Saw Not Working


Frequently Asked Questions On Makita 18V Brushless Circular Saw Not Working

Why Has My Circular Saw Stopped Working?

A circular saw may stop working due to a worn out or damaged motor.

What Is The Green Light On Makita Circular Saw?

The green light on a Makita circular saw indicates that the tool is powered on and ready to use.

Why Is My Dewalt Circular Saw Not Spinning?

Your Dewalt circular saw may not be spinning due to a worn-out motor or a faulty power source.

How Do You Raise The Blade On A Makita Circular Saw?

To raise the blade on a Makita circular saw, locate the blade height adjustment lever and push it upwards.

Why Is My Makita 18V Brushless Circular Saw Not Working Properly?

If your Makita 18V Brushless Circular Saw is not working properly, it could be due to a few common issues.


Overall, if you find that your Makita 18V Brushless Circular Saw is not working properly, it’s important to troubleshoot the issue to determine the cause and find a solution. Start by checking the power source, ensuring the battery is fully charged or the cord is securely plugged in.

If the power source is not the problem, try adjusting the settings and inspecting the blade for any damage. Additionally, make sure you are using the correct technique and that the saw is properly lubricated. If the issue persists, it may be necessary to seek professional assistance or contact the manufacturer for further guidance.

Taking the time to properly diagnose and address any problems will ultimately help you maximize the performance and lifespan of your Makita 18V Brushless Circular Saw.

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