Troubleshooting Guide: What to Do When Your Dewalt Miter Saw Won’t Work

If you’ve ever experienced the frustration of your Dewalt miter saw refusing to cooperate, you understand the inconvenience it can cause during your woodworking projects. However, before giving in to the temptation of throwing in the towel, it’s important to remember that there are often simple solutions to common issues that may be hindering your saw’s performance. This troubleshooting guide is designed to equip you with the knowledge and tips necessary to identify and address the problems that may be preventing your Dewalt miter saw from working as intended, ultimately saving you time and money in the process.

Key Takeaways
There could be several reasons why your Dewalt miter saw is not working, including a faulty power source, a broken or dull blade, a tripped circuit breaker, or mechanical issues such as a stuck blade guard or worn-out bearings. Check these components and connections to troubleshoot the problem and consider consulting a professional if needed for further repairs.

Check Power Source

When your Dewalt miter saw won’t work, the first step is to check the power source. Ensure that the saw is properly plugged into a functioning power outlet. If the saw is cordless, make sure the battery is fully charged or replace it with a charged one. Sometimes a loose connection or a tripped circuit breaker can be the reason behind the power issue, so inspect the power cord and reset the breaker if needed.

Additionally, inspect the power cord for any visible damage such as cuts or frays that may be causing a disruption in the electrical flow. If there are any issues with the power source, rectifying them should be the first troubleshooting step before moving on to other potential problems with the miter saw. By addressing power-related issues promptly, you can eliminate simple reasons for your Dewalt miter saw not working and potentially save time and effort in getting it up and running smoothly again.

Inspect Blade And Guard

To begin troubleshooting your Dewalt miter saw, the first step is to inspect the blade and guard. Start by checking if the blade is correctly installed and not dull, damaged, or improperly aligned. A dull or damaged blade can prevent the saw from cutting efficiently and may need to be sharpened or replaced. Make sure the blade guard is functioning properly and not obstructing the blade’s movement.

Next, examine the blade guard for any debris, such as sawdust or dirt, that may be hindering its operation. Clean out any obstructions and ensure that the guard can move freely to allow the blade to spin without interference. Additionally, check for any visible signs of wear or damage on the guard that may require repair or replacement.

By thoroughly inspecting the blade and guard of your Dewalt miter saw, you can address potential issues that may be causing it to malfunction. Taking the time to properly maintain and care for these components will help ensure optimal performance and extend the life of your saw.

Verify Trigger Mechanism

To verify the trigger mechanism on your Dewalt miter saw, start by checking for any visible damage or debris around the trigger area. Sometimes, accumulated dust or debris can obstruct the trigger, preventing it from functioning properly. Use a soft brush or compressed air to clean around the trigger mechanism.

Next, ensure that the trigger switch is engaging correctly when pressed. Test the trigger by gently pressing it to see if there is any resistance or unusual clicking sounds. If the trigger feels loose or unresponsive, it may indicate a faulty trigger switch that needs to be replaced.

Additionally, inspect the wiring connected to the trigger mechanism for any signs of wear or fraying. Damaged wiring can disrupt the electrical connection and prevent the trigger from activating the saw. If you notice any issues with the wiring, consider replacing it or consulting a professional for further assistance in troubleshooting the trigger mechanism on your Dewalt miter saw.

Examine Motor And Brushes

To troubleshoot issues with a Dewalt miter saw that won’t work, it’s essential to examine the motor and brushes. Start by checking for any visible signs of damage or wear on the motor. Look for burnt smell, signs of overheating, or unusual noise when the saw is turned on. If any of these symptoms are present, it may indicate a problem with the motor that needs to be addressed.

Next, inspect the brushes located near the motor. Brushes are crucial components that conduct electricity to the motor. Check for any signs of wear, chipping, or damage to the brushes. If the brushes are worn out, they may need to be replaced to restore proper functionality to the miter saw. Additionally, ensure that the brushes are making proper contact with the motor for efficient power transfer.

Regular maintenance of the motor and brushes can help prevent future issues with your Dewalt miter saw. By inspecting and maintaining these components, you can prolong the life of your saw and ensure it operates smoothly and efficiently for all your woodworking projects.

Assess Safety Features

Safety features on your Dewalt miter saw are designed to protect you while operating the tool. If your miter saw isn’t working as expected, it’s crucial to assess these safety features before proceeding with any troubleshooting steps. Begin by checking the blade guard to ensure it is functioning properly and not obstructing the blade’s movement.

Next, examine the safety switch to verify that it is engaging correctly when the saw is in use. This switch is a critical component that should stop the saw’s operation immediately if triggered. Additionally, make sure the power cord is in good condition and that the saw is securely plugged into a working power source, as faulty connections can compromise the tool’s safety features.

Lastly, review the user manual to confirm you are following all recommended safety procedures when using the miter saw. Understanding and adhering to these guidelines is essential for preventing accidents and ensuring the safe operation of your Dewalt miter saw.

Align Fence And Bevel Angles

To ensure your Dewalt miter saw operates efficiently, it is crucial to align the fence and bevel angles correctly. Misalignment in these areas can lead to inaccurate cuts and potential safety hazards. Start by checking the fence alignment by ensuring it is square to the blade. Use a square tool to adjust the fence as needed, making sure it is perfectly perpendicular to the cutting surface.

Next, move on to the bevel angles, which control the tilt of the blade for bevel cuts. Improper bevel angle alignment can result in crooked cuts and compromised accuracy. Adjust the bevel angle by referring to the saw’s user manual for specific instructions on how to recalibrate it. Make small adjustments and test cuts until you achieve the desired angle accuracy. Properly aligning the fence and bevel angles will enhance the performance of your Dewalt miter saw and ensure precise cuts for your woodworking projects.

Clean And Lubricate Moving Parts

Regular maintenance of your Dewalt miter saw is crucial to ensure optimal performance. Cleaning and lubricating moving parts is an essential step in troubleshooting when your miter saw won’t work properly. Dust and debris can accumulate over time, causing the saw to operate less efficiently or even lead to malfunctions.

To clean the moving parts, start by unplugging the saw and removing any sawdust or debris with a brush or compressed air. Pay close attention to the blade guard, pivot points, and the miter adjustment mechanism. Once the parts are clean, apply a suitable lubricant to ensure smooth operation. A light oil or silicone-based lubricant is recommended for moving parts to reduce friction and prevent wear.

Regularly cleaning and lubricating the moving parts of your Dewalt miter saw can extend its lifespan and improve its performance. By taking the time to maintain your saw properly, you can avoid potential issues and ensure that it continues to work efficiently for years to come.

Consult Professional Repair Services

When all troubleshooting steps fail to resolve the issues with your Dewalt miter saw, it may be time to consult professional repair services. Even after attempting various troubleshooting techniques, some underlying problems may require the expertise of a professional repair technician.

By seeking the help of a professional, you can ensure that the root cause of the malfunction is accurately diagnosed and effectively resolved. Repair technicians have the tools, knowledge, and experience to identify and fix complex issues with precision, ultimately saving you time and frustration in the long run.

Professional repair services can also provide you with peace of mind, knowing that your Dewalt miter saw is in good hands and will be restored to optimal working condition. Additionally, they can offer advice on maintenance practices to prevent future problems and extend the lifespan of your equipment.


What Should I Do If My Dewalt Miter Saw Is Not Turning On?

If your Dewalt miter saw is not turning on, you should first check the power source to ensure it is properly connected and switched on. Next, inspect the power cord for any damage or fraying that may be causing a connection issue. Additionally, verify that the saw’s safety features, such as the blade guard, are correctly engaged. If these steps do not resolve the issue, it may be a problem with the saw’s internal components, and you should contact Dewalt customer service for further assistance or consider taking the saw to a professional for repair.

How Do I Troubleshoot If My Dewalt Miter Saw Is Making Strange Noises During Operation?

If your Dewalt miter saw is making strange noises during operation, start by checking for any loose or damaged parts, such as the blade or belt. Ensure that the blade is securely fastened and not dull or bent. Clean the saw thoroughly to remove any debris that may be causing the noise. If the issue persists, consider lubricating moving parts with a suitable lubricant. If the problem continues, it may be best to consult the user manual for troubleshooting tips or contact Dewalt customer support for further assistance.

What Steps Can I Take If The Blade On My Dewalt Miter Saw Is Not Cutting Accurately?

If the blade on your Dewalt miter saw is not cutting accurately, the first step is to ensure the blade is sharp and properly aligned. Check for any damage or dullness on the blade and tighten any loose bolts that may be affecting its alignment. Next, adjust the saw’s miter and bevel angles to ensure they are set correctly for the type of cut you are making. If the issue persists, consider consulting the user manual for troubleshooting tips or contact Dewalt customer support for further assistance.

Why Does My Dewalt Miter Saw Keep Tripping The Circuit Breaker?

Your Dewalt miter saw may be tripping the circuit breaker due to overloading the electrical circuit. This can happen if the saw is drawing more power than the circuit can handle. Check the saw’s power requirements and make sure it is compatible with the circuit’s capacity. Additionally, a faulty circuit breaker or wiring can also cause tripping. Consider having a qualified electrician inspect the circuit and make any necessary repairs or upgrades to prevent further tripping issues.

How Can I Fix A Dewalt Miter Saw That Is Not Beveling Or Mitering Properly?

First, ensure that the saw is properly calibrated by checking the bevel and miter angles with a square or protractor. If adjustments are needed, refer to the user manual for instructions on recalibrating the angles. Next, check for any obstructions or debris that may be hindering the proper movement of the saw. Clean the saw blade, miter detent plate, and bevel stops to ensure smooth operation. If the issue persists, consider seeking professional servicing or contacting Dewalt customer support for further assistance.


It is essential to remember that troubleshooting issues with your DeWalt miter saw can be frustrating, but with patience and a systematic approach, many common problems can be easily resolved. By following the steps outlined in this guide and utilizing additional resources such as DeWalt’s customer support or online forums, you can quickly get your miter saw back up and running efficiently. Remember to prioritize safety at all times and never hesitate to seek professional assistance if you encounter a more complex issue beyond your expertise. With determination and the right tools, you can overcome any obstacle that stands in the way of your woodworking projects.

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