Why Does My Dewalt 20V Circular Saw Not Working?

Last Updated On October 3, 2023

If your Dewalt 20V circular saw is not working, there are a few possible reasons to consider. When troubleshooting this issue, first check the power source and ensure it is functional.

Then, inspect the battery and confirm it is properly connected and charged. If both are in working order, examine the switch to see if it is damaged or malfunctioning. Finally, evaluate the motor for any signs of damage or worn-out parts.

By addressing these potential issues, you can determine the cause of the problem and implement the necessary repairs or replacements to get your Dewalt 20V circular saw back up and running.

Identifying Power Supply Issues

If your Dewalt 20V circular saw is not working, it may be due to power supply issues. Check the battery connections and make sure they are securely attached. If the battery is fully charged but the saw doesn’t turn on, there may be a problem with the charger.

Inspect the charger for any visible damage or issues.

If you’re experiencing issues with your Dewalt 20V circular saw not working, it could be due to power supply problems. Here are some steps you can take to identify and troubleshoot these issues:

Checking The Battery Level:

  • Inspect the battery level indicator on the circular saw. If it appears low, it could indicate a drained battery.
  • Swap out the battery with a fully charged one to test if the issue lies with the battery itself.
  • Ensure that the battery is securely connected to the saw, as loose connections can cause power supply problems.
  • Clean the battery terminals and contacts to remove any dirt or debris that may hinder the connection.

Inspecting The Power Cord:

  • Examine the power cord for any visible damage, such as cuts, frayed areas, or loose connections at the plug or tool end.
  • Ensure the power cord is securely connected to both the saw and the power outlet.
  • If possible, try using a different power cord to see if the issue persists, ruling out a faulty cord.

Testing The Charger:

  • Connect the circular saw to the charger and ensure that it is properly seated.
  • Confirm that the charger is plugged into a functioning power outlet.
  • Check if the charger’s indicator lights are displaying the correct status, such as charging or fully charged.
  • If available, try using a different charger to see if the problem lies with the charger itself.

By following these steps, you can pinpoint and address power supply issues that may be causing your Dewalt 20V circular saw to not work properly. Once you have identified the specific problem, you will be better equipped to find a solution and get back to your woodworking tasks efficiently.

Addressing Motor Problems

Having trouble with your Dewalt 20V circular saw? Experience motor problems? Our guide provides solutions to get your saw working efficiently again.

If your Dewalt 20V circular saw is not working, it might be due to motor problems. The motor is a crucial component of the saw, and issues with it can hinder its performance. In this section, we will examine motor brushes, discuss the steps to clean or replace them, and explain how to test the motor for continuity.

Examining Motor Brushes:

  • Motor brushes are responsible for transferring electrical current to the motor’s armature.
  • Over time, the brushes can wear out, leading to decreased performance or complete failure of the saw.
  • Check the motor brushes for signs of damage, such as excessive wear, chipped edges, or worn-down carbon blocks.
  • Inspect the brush springs to ensure they are properly attached and provide the necessary tension.

Cleaning Or Replacing Motor Brushes:

  • Start by disconnecting the saw from the power source to avoid any accidents.
  • Remove the brush caps or covers located on the sides of the saw’s motor.
  • Gently slide out the motor brushes from their holders.
  • Clean the brushes using a soft brush or compressed air to remove any debris or dust.
  • If the brushes are heavily worn or damaged, it is recommended to replace them with new ones.
  • Carefully insert the new brushes into their holders, making sure they fit snugly.
  • Put the brush caps or covers back in place, ensuring they are securely fastened.

Testing The Motor For Continuity:

  • To determine if there are any electrical connectivity issues with the motor, you can perform a continuity test.
  • Disconnect the saw from the power source and ensure it is completely turned off.
  • Set your multimeter to the continuity testing mode.
  • Touch one probe of the multimeter to one of the motor brushes and the other probe to the corresponding terminal on the motor.
  • If there is continuity, the multimeter will beep or display a reading close to zero ohms.
  • Repeat the process for the other brush and its corresponding terminal.
  • If you encounter a lack of continuity, it indicates a problem with the motor, and you may need to seek professional assistance or consider replacing the motor.

Regular maintenance and troubleshooting motor problems can help ensure your Dewalt 20V circular saw operates smoothly and efficiently. By examining motor brushes, cleaning or replacing them as needed, and testing the motor’s continuity, you can address motor-related issues and get your saw back in working order.

Fixing Blade And Cutting Issues

If your Dewalt 20V circular saw is not working properly, you may be facing blade and cutting issues. These issues can be frustrating, but with some troubleshooting and fixes, you can get your saw back in working order. Look for any damaged or dull blades, check for proper alignment, and ensure the power source is functioning correctly.

Verifying Blade Installation:

  • Check if the circular saw blade is securely installed by following these steps:
  • Ensure that the power source is disconnected to prevent any accidents.
  • Examine the blade for any signs of damage or wear.
  • Carefully remove the battery from the saw.

Ensuring Proper Blade Alignment:

  • Correct blade alignment is crucial for optimal performance. Here’s what you should do:
  • Place a straight edge (such as a ruler) against the blade.
  • Check if the blade runs parallel to the straight edge.
  • If the blade is misaligned, refer to the user manual for instructions on how to adjust it.

Adjusting Blade Depth:

  • Improper cutting depth can affect the saw’s functionality. Here’s how you can adjust it:
  • Start by disconnecting the power source to avoid accidents.
  • Look for the blade depth adjustment lever or knob on the saw.
  • Use the lever or knob to increase or decrease the blade depth as needed.
  • Verify that the blade depth is appropriate for the material you’re cutting.

Evaluating The Quality Of The Blade:

  • A dull or damaged blade can result in poor cutting performance. Consider the following:
  • Examine the blade for any signs of dullness, chipping, or warping.
  • Replace the blade if it appears worn out or damaged.
  • Ensure you are using the appropriate type of blade for the material you’re cutting.
  • Properly clean and store the blade after each use to prolong its lifespan.

By systematically assessing the blade installation, alignment, depth, and quality, you can troubleshoot and resolve common issues preventing your Dewalt 20V circular saw from working effectively. Remember to prioritize safety precautions throughout the process for a successful outcome.

Dewalt 20V Circular Saw Not Working

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Resolving Safety Mechanism Malfunctions

Having trouble with your Dewalt 20V circular saw? We can help you fix safety mechanism malfunctions, ensuring your tool is back up and running smoothly.

Are you experiencing issues with your Dewalt 20V circular saw? Don’t worry, in this section, we’ll address the common problems related to safety mechanism malfunctions and provide you with the necessary steps to resolve them. Let’s dive right in.

Verifying Proper Trigger Operation:

  • Ensure that the trigger mechanism is functioning correctly by following these steps:
  • Confirm that the trigger is not stuck or jammed in any way.
  • Press the trigger fully and release it to see if it springs back smoothly.
  • Check if the trigger is responsive when pressed; it should activate the saw’s motor without any delay.
  • If you suspect any issues with the trigger, consult the user manual for troubleshooting steps or consider contacting the Dewalt customer support team.

Checking For Obstructions In The Guard:

  • Sometimes, the circular saw may not work due to obstructions in the guard. Here’s what you can do:
  • Examine the guard thoroughly for any debris, sawdust, or foreign objects that might be obstructing its movement.
  • Gently remove any obstructions using a brush or compressed air.
  • Ensure that the guard moves freely and smoothly without any resistance.
  • If the guard still seems stuck or obstructed, consult the user manual or seek assistance from a professional technician.

Examining The Safety Lock:

  • The safety lock plays a crucial role in preventing accidental saw activation. If it malfunctions, the saw may not work as expected. Follow these steps to resolve any issues with the safety lock:
  • Locate the safety lock mechanism on your Dewalt 20V circular saw.
  • Inspect the lock for any visible damage, wear, or misalignment. If you notice any, it may need to be replaced or adjusted.
  • Check if the safety lock engages and disengages smoothly when using the saw.
  • If the safety lock doesn’t function properly, refer to the user manual for troubleshooting tips or seek professional assistance.

By following these steps, you can troubleshoot and resolve common safety mechanism malfunctions in your Dewalt 20V circular saw. Remember to prioritize your safety and exercise caution when handling power tools. If the issues persist or you need further assistance, don’t hesitate to reach out to Dewalt’s customer support team for guidance.

Seeking Professional Assistance

Having trouble with your Dewalt 20V Circular Saw? Seek professional assistance to get it working flawlessly again.

Have you encountered issues with your Dewalt 20V circular saw and are unsure how to proceed? Seeking professional assistance can be immensely helpful in diagnosing and fixing the problem. Here are some avenues you can explore:

Contacting Dewalt Customer Support:

  • Reach out to the Dewalt customer support team to discuss the issue you’re experiencing.
  • Provide them with a detailed description of the problem, including any error messages or unusual behavior.
  • They may be able to troubleshoot the problem over the phone or advise you on the next steps to take.

Consulting A Professional Repair Service:

  • Consider taking your Dewalt 20V circular saw to a professional repair service that specializes in power tools.
  • These experts have extensive knowledge and experience working with Dewalt products, making them well-equipped to identify and resolve any issues.
  • They can provide a professional diagnosis of the problem and perform the necessary repairs to get your circular saw working again.

Evaluating Warranty Options:

  • Check if your Dewalt 20V circular saw is still under warranty.
  • If it is, you may be eligible for free repairs or even a replacement.
  • Review the terms and conditions of your warranty to understand what is covered and how to initiate the warranty claim process.

Remember, seeking professional assistance ensures that the problem with your Dewalt 20V circular saw is properly diagnosed and resolved, saving you time and frustration.

Frequently Asked Questions Of Dewalt 20V Circular Saw Not Working

  • Why Did My Dewalt Circular Saw Stop Working?

    Your Dewalt circular saw may have stopped working due to a variety of issues, such as a faulty motor or power supply.

  • Why Has My Circular Saw Stopped Working?

    There can be various reasons for a circular saw to stop working, like a worn-out motor or a disconnected wire. It’s essential to troubleshoot the issue and seek professional assistance if needed.

  • Why Is My Circular Saw Spinning But Not Cutting?

    If your circular saw is spinning but not cutting, it may be due to a dull blade.

  • How Long Does A Cordless Circular Saw Last?

    A cordless circular saw typically lasts for several years, depending on frequency of use and maintenance.

  • Why Is My Dewalt 20V Circular Saw Not Working?

    If your Dewalt 20V circular saw is not working, it could be due to a variety of reasons such as a dead battery, a faulty power switch, or a malfunctioning motor.


If you’re experiencing issues with your Dewalt 20V Circular Saw, don’t panic. There are several troubleshooting steps you can take to get it up and running smoothly again. First, make sure the battery is fully charged and securely attached. Next, check the blade to ensure it’s properly installed and not worn out.

Cleaning the saw and removing any debris can also help improve its performance. If these steps don’t resolve the problem, it may be necessary to contact Dewalt customer support for further assistance or take the saw to an authorized service center.

Remember, regular maintenance and care can prevent many of the common issues with power tools like the Dewalt 20V Circular Saw. By following these tips, you can get back to your projects without any interruptions. Happy sawing!

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