Milwaukee Circular Saw Not Spinning

Last Updated On October 10, 2023

Your Milwaukee circular saw may not be spinning due to a possible motor or switch issue. Check the motor brushes and replace if necessary, or troubleshoot the switch for any faults.

Common Causes Of Milwaukee Circular Saw Not Spinning

One possible response: Possible causes of a Milwaukee circular saw not spinning can include a faulty power cord, a worn-out motor, or a malfunctioning switch. These issues should be addressed promptly to ensure proper functioning of the saw.

The Milwaukee circular saw is a versatile tool commonly used in woodworking and construction projects. However, like any power tool, it can experience issues that may prevent it from spinning properly. In this section, we will explore some of the common causes of a Milwaukee circular saw not spinning, including motor malfunctions, trigger switch issues, and worn-out brushes.

Motor Malfunction

  • Faulty Power Supply: Make sure the saw is plugged into a working power outlet and the power cord is not damaged.
  • Motor Overload: If the saw is overloaded with too much resistance or material, the motor may shut off to prevent damage. Allow the motor to cool down before attempting to use the saw again.
  • Burnt Out Motor: If the motor has burnt out, it may need to be replaced. Consult a professional technician for assistance.

Trigger Switch Issue

  • Dirty or Stuck Switch: Dirt or debris can accumulate in the trigger switch, preventing it from engaging. Clean the switch using compressed air or a small brush. If the switch is stuck, it may need to be replaced.
  • Loose Wiring: Check the wiring connections between the trigger switch and the motor. If any wires are loose or damaged, they should be repaired or replaced.

Worn Out Brushes

  • Carbon Brushes: The brushes in the motor transfer power to the spinning armature. Over time, these brushes can wear down and require replacement. Check the condition of the brushes and replace them if necessary.
  • Brush Springs: The springs that hold the brushes in place can also wear out or become loose. Ensure the brush springs are in good condition and properly seated in the motor.

There are several common causes for a Milwaukee circular saw not spinning, including motor malfunctions, trigger switch issues, and worn-out brushes. By troubleshooting these potential problems, you can get your circular saw up and running again. Remember to prioritize safety and consult a professional if needed.

How To Identify Motor Malfunction In Milwaukee Circular Saw

Identifying motor malfunction in a Milwaukee circular saw requires careful observation of the blade not spinning. Check for issues with the power supply, wiring, or the motor itself to determine the cause and resolve the problem efficiently.

Signs Of Motor Malfunction

A Milwaukee circular saw not spinning can be a frustrating problem to encounter. The motor plays a crucial role in powering the saw, so if it malfunctions, it can affect the performance of the tool. Here are some signs to look out for to identify motor malfunction:

  • Lack of power: When you switch on the circular saw and notice a significant decrease in power, it may indicate a motor malfunction. The blades may spin slower than usual or struggle to cut through materials.
  • Unusual noise: If your circular saw produces strange noises such as grinding, squealing, or clicking sounds, it could be a sign of a motor problem. These noises may indicate that parts within the motor are rubbing against each other or have become damaged.
  • Burning smell: A distinct burning smell emanating from your saw indicates an overheating motor. This can be a result of worn-out brushes or damaged windings, which require immediate attention to prevent further damage.

Testing The Motor

Once you suspect a motor malfunction, it’s important to assess its condition before deciding on the next course of action. Here’s how you can test the motor of your Milwaukee circular saw:

  • Power source check: Ensure that the saw is properly plugged into a functioning power outlet. Faulty power sources can sometimes mimic motor malfunctions.
  • Inspect for loose connections: Check for any loose or disconnected wires within the motor. Sometimes, a simple reconnection can solve the problem.
  • Brush inspection: Examine the carbon brushes inside the motor assembly. If they appear worn, damaged, or unevenly worn out, they may need to be replaced.
  • Electrical testing: Use a multimeter to measure the continuity of the motor’s windings. If there is no continuity or inconsistent readings, it indicates a faulty motor.

Replacing The Motor

If testing confirms that the motor is indeed malfunctioning, it will likely need to be replaced. Follow these steps for a successful motor replacement:

  • Gather the necessary tools: Some common tools required for motor replacement include a screwdriver, wrench, and pliers.
  • Disconnect power: Before replacing the motor, make sure to unplug the saw from the power source to ensure your safety.
  • Remove the old motor: Depending on the circular saw model, removing the motor may involve unscrewing it from the housing or disassembling the saw’s casing. Follow the manufacturer’s instructions or refer to the user manual for guidance.
  • Install the new motor: Align the new motor in its correct position and secure it in place using the appropriate screws. Double-check that all connections are tight and secure.
  • Test the new motor: Once the motor is replaced, plug in the saw and test it to ensure that the circular saw spins properly without any issues.

By familiarizing yourself with the signs of motor malfunction, testing the motor, and knowing the steps to replace it, you can effectively address the problem of a Milwaukee circular saw not spinning. Remember to prioritize safety and consult a professional if you are unsure or uncomfortable with performing the replacement yourself.

Troubleshooting The Trigger Switch Issue In Milwaukee Circular Saw

Having trouble with the trigger switch on your Milwaukee Circular Saw? If your saw isn’t spinning, troubleshooting the trigger switch issue might be the solution. Get your saw back to work with these tips.

If you’re experiencing a Milwaukee circular saw not spinning, one possible culprit could be a faulty trigger switch. The trigger switch is responsible for starting the motor and spinning the blade when activated. Luckily, troubleshooting and repairing or replacing the trigger switch is a relatively straightforward process.

In this section, we’ll explore the symptoms of a faulty trigger switch, how to test and repair it, as well as the steps involved in replacing the trigger switch.

Symptoms Of A Faulty Trigger Switch:

  • Saw not spinning when the trigger is pressed: This is the most obvious symptom of a faulty trigger switch. When you pull the trigger, the motor should engage, and the blade should start spinning. If nothing happens when you press the trigger, it’s likely that the trigger switch is not functioning correctly.
  • Intermittent spinning: Another common symptom is when the saw blade spins inconsistently or sporadically. The trigger switch may be loose or have internal components that are worn out, causing intermittent contact and unreliable operation.
  • Sparks or smoke from the switch: If you notice sparks or smoke coming from the trigger switch, it is a clear indication of an electrical issue. This could be caused by damage to the switch or a short circuit within the switch assembly.
  • Trigger switch feels loose or sticky: A trigger switch that feels loose or sticky when pressed may indicate wear and tear or accumulation of debris inside the switch assembly. This can affect the switch’s ability to make proper contact and result in the saw not spinning.

Testing And Repairing The Trigger Switch:

  • Visual inspection: Start by visually inspecting the trigger switch for any visible signs of damage or loose connections. Check if any wires are frayed, disconnected, or burnt. If you spot any issues, they may need to be repaired or replaced.
  • Multimeter testing: To further diagnose the trigger switch, you can use a multimeter to test for continuity or resistance. Follow the manufacturer’s guidelines to safely test the switch and determine whether it is functioning properly.
  • Cleaning and lubrication: If the trigger switch feels sticky or unreliable, you can try cleaning it with a contact cleaner. Be sure to disconnect the power source before doing any cleaning. After cleaning, apply a small amount of electrical lubricant to ensure smooth operation.

Replacing The Trigger Switch:

  • Preparation: Before replacing the trigger switch, ensure that you have the correct replacement switch for your Milwaukee circular saw model. It’s also advisable to consult the manufacturer’s manual or online resources for detailed instructions specific to your model.
  • Disconnect the power source: Always unplug the saw or remove the battery before working on any electrical components. Safety should be your top priority.
  • Remove the old trigger switch: Depending on the model, you may need to remove the handle or other parts to access the trigger switch. Carefully disconnect any wires connected to the switch and remove the old switch from its housing.
  • Install the new trigger switch: Align the new trigger switch in the housing and reconnect the wires according to the manufacturer’s instructions. Ensure that the new switch is securely in place before reassembling any parts that were removed.
  • Test the saw: Once the trigger switch is replaced, reconnect the power source and test whether the saw is now spinning properly. If all went well, you should be back to using your Milwaukee circular saw without any issues.

Remember, if you’re unsure about any troubleshooting or repair steps, it’s always recommended to seek professional assistance or consult the manufacturer’s support team for guidance. Safety and proper functioning of the saw should be your utmost priority when working on electrical components.

Milwaukee Circular Saw Not Spinning


Dealing With Worn Out Brushes In Milwaukee Circular Saw

If your Milwaukee circular saw is not spinning, it could be due to worn out brushes. Don’t worry, we have some tips to help you deal with this issue effectively.

When it comes to your trusty Milwaukee circular saw, it can be frustrating to encounter issues like the saw not spinning properly. One common culprit behind this problem is worn out brushes. However, fear not! In this section, we will explore the signs of worn out brushes, how to clean and replace them, and provide tips for proper brush maintenance.

Signs Of Worn Out Brushes

  • The circular saw’s motor is running but the blade isn’t spinning: This could indicate that the brushes have become worn down and are no longer making proper contact with the motor.
  • Intermittent or erratic spinning of the blade: If the saw’s blade is not spinning smoothly or starts and stops randomly, worn out brushes could be to blame.
  • Sparking or excessive heat from the motor: When brushes wear down, they can cause increased friction, leading to sparks and excessive heat. These signs should not be ignored, as they can be dangerous.

Cleaning And Replacing Brushes

To ensure the smooth operation of your Milwaukee circular saw, it’s essential to clean and replace the brushes when necessary. Here’s how:

  • Step 1: Gently remove the brush caps on either side of the saw’s motor housing.
  • Step 2: Take out the old brushes by sliding them out of their holders.
  • Step 3: Inspect the brushes for signs of wear, such as frayed or excessively short carbon pieces. If they are worn beyond a certain point, it’s time for replacements.
  • Step 4: Clean the brush holders and motor housing to remove any debris or dust that may have accumulated.
  • Step 5: Insert the new brushes into their respective holders, ensuring they slide in smoothly.
  • Step 6: Secure the brush caps back into place.

Proper Brush Maintenance

Proper brush maintenance is crucial for keeping your Milwaukee circular saw in top shape. Follow these tips to maximize the lifespan of your brushes:

  • Regular inspection: Check the brushes periodically for signs of wear and tear, and replace them as needed.
  • Dust removal: Ensure that the motor housing is kept clean and free from dust and debris, as this can contribute to brush wear.
  • Avoid overload: Don’t push your saw beyond its capacity, as excessive strain on the motor can accelerate brush wear.
  • Sharp blades: Using sharp blades reduces the workload on the motor, helping to extend the life of the brushes.
  • Store properly: When not in use, store your circular saw in a dry place and protect it from excessive temperature changes or moisture.

By understanding the signs of worn out brushes and implementing proper cleaning, replacement, and maintenance techniques, you can ensure that your Milwaukee circular saw continues to deliver optimal performance. Remember, a well-maintained saw is a reliable tool for all your cutting needs.

Additional Troubleshooting Tips For Milwaukee Circular Saw Not Spinning

Having trouble with your Milwaukee Circular Saw not spinning? Here are some additional troubleshooting tips to help you get it back up and running smoothly. Ensure the power source is connected properly, check the blade for any obstructions, and inspect the motor for any signs of damage.

Milwaukee Circular Saw Not Spinning – Additional Troubleshooting Tips for Getting it Working Again

Checking For Electrical Issues:

  • Check if the saw is plugged in properly and the power source is working.
  • Ensure that the power switch on the saw is in the “on” position.
  • Examine the power cord for any fraying, damage, or loose connections.
  • Test the power outlet with another device to ensure it’s functioning.
  • Inspect the circuit breaker or fuse box to see if a tripped breaker or blown fuse is causing the issue.

Inspecting The Power Cord:

  • Carefully examine the entire length of the power cord for any cuts, breaks, or exposed wires.
  • Gently wiggle the cord at different points to check for loose connections or internal wiring damage.
  • If you notice any damage or loose connections, it is recommended to replace the power cord with a new one.
  • Avoid using extension cords, as they may not provide sufficient power for the circular saw.

Examining The Blade Guard Assembly:

  • Ensure that the blade guard assembly is properly aligned and securely attached.
  • Look for any obstructions or debris around the blade guard that could be preventing it from functioning properly.
  • Check if the blade guard moves freely without any obstructions or resistance.
  • Inspect the blade guard spring for any signs of damage or wear, and replace if necessary.
  • Clean any built-up sawdust or debris from around the blade guard assembly.

Troubleshooting Tips Recap:

  • Plug the saw into a working power outlet and ensure the power switch is on.
  • Inspect the power cord for any damage or loose connections.
  • Examine and clean the blade guard assembly for proper alignment and operation.

Remember, it’s important to prioritize safety during troubleshooting. Always disconnect the saw from the power source before performing any inspections or repairs. If these troubleshooting steps do not resolve the issue, it may be best to consult a professional or contact Milwaukee customer support for further assistance.

Keep these tips in mind, and hopefully, you’ll be able to get your Milwaukee circular saw spinning again in no time!

Professional Help For Milwaukee Circular Saw Not Spinning

Get professional help for your Milwaukee circular saw that won’t spin. Solve the issue promptly with expert guidance and ensure smooth operation of your saw.

When To Seek Professional Assistance

If you’re facing the issue of your Milwaukee circular saw not spinning, sometimes it’s best to seek professional help. While you may attempt some troubleshooting on your own, there are certain situations where the expertise of a qualified professional is necessary.

Here are some scenarios when you should consider getting professional assistance:

  • Unusual sounds and vibrations: If your circular saw is making strange noises or exhibiting excessive vibrations during operation, it may be a sign of a more serious problem. A professional can diagnose the issue and provide the necessary repairs or adjustments.
  • Lack of power: If your circular saw is not spinning at all or experiencing a significant decrease in power output, it could indicate a motor or electrical issue. Professional technicians have the knowledge and experience to identify and resolve these types of problems.
  • Safety concerns: When it comes to power tools, safety should always be a top priority. If you notice any safety-related issues, such as sparks coming from the motor or smoke emitting from the saw, it’s crucial to consult with a professional immediately.
  • Persistent issues: If you’ve tried troubleshooting the problem on your own but the saw still fails to spin properly, it’s a good idea to turn to a professional for assistance. They have the expertise to dig deeper into the problem, providing a more comprehensive solution.

Selecting A Qualified Service Center

When seeking professional help for your Milwaukee circular saw, it’s important to choose a qualified service center. Here are some factors to consider when selecting a service center:

  • Authorized service center: Look for service centers that are authorized by Milwaukee. Authorized centers have access to genuine parts and are trained to work on Milwaukee circular saws specifically.
  • Experience and expertise: Consider service centers that have a good reputation and years of experience in repairing power tools. Look for technicians who specialize in circular saw repairs and have the necessary expertise to handle your specific issue.
  • Customer reviews and ratings: Read customer reviews and ratings of different service centers to gauge their reliability and customer satisfaction levels. Positive reviews and high ratings indicate that the center is likely to provide quality service.
  • Location and convenience: Choose a service center that is conveniently located and easily accessible. This will make it easier for you to drop off and pick up your circular saw when it’s repaired.
  • Turnaround time: Inquire about the expected turnaround time for repairs. A prompt and efficient service center will minimize the time you are without your circular saw.

Warranty Coverage For Repairs

If your Milwaukee circular saw is still under warranty, it’s essential to understand the warranty coverage for repairs. Here are some key points to keep in mind:

  • Check the warranty terms: Review the terms and conditions of your warranty to determine if the issue you’re experiencing with the saw is covered. Certain repairs may be excluded or require additional documentation.
  • Authorized repair centers: Warranty coverage often requires repairs to be carried out by authorized service centers. Check if the service center you choose is authorized by Milwaukee to ensure that any repairs will be covered.
  • Parts and labor coverage: Verify what components of the repair are covered by the warranty. This may include both parts and labor costs, reducing your out-of-pocket expenses.
  • Validity of warranty: Ensure that your warranty is valid and has not expired. Repairs performed outside the warranty period may not be covered, and you could be responsible for the full cost.
  • Keep records: Maintain careful records of any communication with Milwaukee or the service center regarding warranty repairs. This documentation can be helpful if any disputes arise.

Remember, seeking professional help can save you time, effort, and potentially further damage to your Milwaukee circular saw. By selecting a qualified service center and understanding the warranty coverage, you can ensure that your saw is repaired effectively and efficiently.

Frequently Asked Questions Of Milwaukee Circular Saw Not Spinning

Why Isn’T My Circular Saw Blade Spinning?

A circular saw blade may not spin due to problems with the power supply, motor, or wiring. Check these areas for issues.

How Do I Reset My Milwaukee Saw?

To reset your Milwaukee saw, follow these steps: 1. Unplug the saw from the power source. 2. Press and hold the reset button for 10 seconds. 3. Release the button and plug the saw back in. 4. Your Milwaukee saw should now be reset and ready for use.

How Do You Rotate A Milwaukee Saw?

To rotate a Milwaukee saw, switch off the power, release the blade lock, and turn the handle to the desired angle.

Why Is My Circular Saw Locking Up?

A circular saw may lock up due to a dull blade, dirty or worn-out parts, or a motor issue.

Q: Why Is My Milwaukee Circular Saw Not Spinning?

A: The saw might be unplugged, the blade might be dull or stuck, or the motor might be damaged.


A Milwaukee circular saw not spinning can be a frustrating issue to deal with. However, by following the troubleshooting steps outlined in this blog post, you can easily identify and resolve the problem. Remember to check the power source, inspect the blade and arbor, and test the saw’s electrical components.

Regular maintenance, such as cleaning and lubricating, can also help prevent future issues. If all else fails, it may be necessary to contact a professional for repairs. By taking the time to properly diagnose and fix the problem, you can ensure that your Milwaukee circular saw functions optimally and continues to provide reliable cutting power for all your woodworking projects.

Happy sawing!

Leave a Reply