How to fix a drone propeller that won’t spin


If you’re a drone enthusiast, you know how frustrating it can be when one of your propellers won’t spin. This can happen for a variety of reasons, from a simple obstruction to a more serious mechanical issue. But don’t worry, with a few simple troubleshooting steps, you can often get your drone back in the air in no time.

Step 1: Check for Obstructions

The first thing you should do when a propeller won’t spin is to check for any obstructions. Look for debris like dirt, hair, or small objects that may be caught in the propeller. Use a pair of tweezers or a small brush to carefully remove any debris you find.

If the propeller still won’t spin after removing any obstructions, move on to the next step.

Troubleshooting the Issue

If one of your drone propellers won’t spin, there are several potential causes for this issue. Here are some troubleshooting steps to help you identify and fix the problem:

1. Check for Obstructions

Inspect the propeller and the motor to make sure there are no obstructions that could be preventing the propeller from spinning. Look for debris, hair, or anything else that could be blocking the movement.

2. Test the Motor

If there are no obstructions, the next step is to test the motor. Try spinning the propeller by hand to see if it moves freely. If it doesn’t, the motor may be damaged and need to be replaced.

Checking for Debris

One common reason for a drone propeller not spinning is debris getting stuck in the motor or propeller. To check for debris, follow these steps:

1. Turn off the drone and remove the propellers.
2. Inspect the motor and propeller shaft for any dirt, hair, or other debris.
3. Carefully clean the motor and shaft using a small brush or compressed air.
4. Reassemble the propellers and test to see if the issue is resolved.

Inspecting the Motor

One of the first things to check when a drone propeller won’t spin is the motor. Make sure to inspect the motor carefully for any signs of damage or debris that may be obstructing its movement. Here are some steps to follow:

Step 1: Visual Inspection

Start by visually inspecting the motor for any visible damage such as dents, scratches, or loose wires. Pay close attention to the propeller shaft and the motor housing for any signs of wear and tear.

Step 2: Clean the Motor

If you notice any debris or dirt on the motor, carefully clean it using a soft brush or compressed air. Make sure to remove any obstructions that may be preventing the motor from spinning freely.

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Step 3: Check for Motor Resistance Use a multimeter to check the resistance of the motor. A reading significantly higher or lower than the specified value could indicate a faulty motor that needs to be replaced.

Testing the Battery

Before trying to fix a drone propeller that won’t spin, it’s important to check the battery. A low or dead battery can cause issues with the drone’s performance, including the propeller not spinning properly. Make sure the battery is fully charged and functioning correctly before troubleshooting the propeller.

Examining the Propeller

Before attempting to fix a drone propeller that won’t spin, it’s important to carefully examine the propeller to identify any visible damage or obstructions. Start by removing the propeller from the drone and inspecting it closely. Look for any cracks, bends, or other signs of damage that could be causing the propeller to malfunction.

If the propeller appears to be in good condition, check for any debris or objects that may be stuck in the propeller mechanism. Use a small tool to carefully remove any obstructions and ensure that the propeller can spin freely without any hindrances.

Assessing the Connections

Before attempting to fix a drone propeller that won’t spin, it’s important to assess the connections. Check that the propeller is securely attached to the motor shaft and that there are no obstructions preventing it from spinning freely. Ensure that the motor wires are properly connected to the flight controller and that there are no loose or damaged connections.

Tip: Use a screwdriver to tighten any loose screws holding the propeller in place and visually inspect the wiring for any signs of damage or wear.

Calibrating the ESC

If your drone propeller still won’t spin after checking the connections, it may be due to an issue with the Electronic Speed Controller (ESC). Calibrating the ESC can help resolve this problem.

1. Power off your drone: Make sure your drone is powered off before proceeding with the calibration process.

2. Connect the ESC to the flight controller: Ensure that the ESC is properly connected to the flight controller.

3. Enter calibration mode: Follow the instructions provided by your drone’s user manual to enter the ESC calibration mode.

4. Calibrate the ESC: Once in calibration mode, follow the specific calibration steps outlined in the user manual. This usually involves moving the throttle stick to its maximum position, waiting for a beep or LED indicator, and then moving it back to the minimum position.

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5. Exit calibration mode: After completing the calibration process, exit the calibration mode as per the user manual instructions.

6. Test the propeller: Power on your drone and test if the propeller now spins correctly. If the issue persists, you may need to repeat the calibration process or seek further assistance.

Adjusting the Flight Controller

If your drone propeller won’t spin, the issue could be with the flight controller. The flight controller is responsible for managing the various components of the drone, including the motors and propellers. Here’s how you can adjust the flight controller to fix the propeller issue:

1. Check the Motor Configuration

Ensure that the flight controller is properly configured to control the motor that is connected to the non-spinning propeller. You may need to adjust the motor mapping in the flight controller software to assign the correct motor to the correct propeller.

2. Calibrate the ESCs

Calibrating the Electronic Speed Controllers (ESCs) can also help fix propeller spin issues. Follow the manufacturer’s instructions to calibrate the ESCs using the flight controller software. This will ensure that the motors receive the correct signals to spin the propellers.

Replacing the Propeller

If your drone propeller won’t spin and you’ve tried all the troubleshooting steps without success, it may be time to replace the propeller. Here’s how you can do it:

1. Turn off your drone and remove the battery to ensure safety.

2. Locate the screws that hold the propeller in place and use a screwdriver to carefully remove them.

3. Gently pull the old propeller off the motor shaft. Be careful not to damage the motor or any other components.

4. Take the new propeller and slide it onto the motor shaft, making sure it is secure and properly aligned.

5. Use the screws you removed earlier to attach the new propeller to the motor. Make sure they are tightened securely.

6. Once the new propeller is in place, reinsert the battery and test the drone to ensure the propeller spins properly.

7. If the propeller still won’t spin, double-check that everything is properly installed and contact customer support for further assistance.

Seeking Professional Help

If you have tried all the troubleshooting steps mentioned above and your drone propeller still won’t spin, it may be time to seek professional help. There could be a more complex issue with the motor or internal components that require specialized knowledge and tools to diagnose and fix.

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Contacting the manufacturer or a certified drone repair service is recommended in such cases. They will have the expertise to assess the problem accurately and provide the necessary repairs or replacements to get your drone back in working order.


My drone propeller suddenly stopped spinning during a flight. What could be the reason for this?

If your drone propeller suddenly stops spinning during flight, there could be several reasons for this issue. One common reason is that the propeller may have become loose or damaged, causing it to stop spinning. Another reason could be a problem with the motor or the electronic speed controller (ESC) that controls the motor. It is also possible that there is an issue with the power supply or the wiring. It is important to carefully inspect your drone and troubleshoot the problem to determine the exact cause of the propeller not spinning.

What steps can I take to fix a drone propeller that won’t spin?

If you are experiencing a drone propeller that won’t spin, there are several steps you can take to try and fix the issue. First, check to make sure that the propeller is securely attached to the motor shaft and that there are no obstructions preventing it from spinning freely. If the propeller is secure and there are no obstructions, you can try recalibrating the electronic speed controller (ESC) or checking the motor for any signs of damage. If these steps do not resolve the issue, you may need to replace the propeller, motor, or ESC to get your drone back in working order.

Can a faulty battery cause a drone propeller to stop spinning?

Yes, a faulty battery can potentially cause a drone propeller to stop spinning. If the battery is not providing enough power to the motor or if there is a problem with the battery connection, it can lead to issues with the propeller not spinning properly. It is important to regularly check the battery health and ensure that it is fully charged before flying your drone. If you suspect that the battery is causing the issue, try using a different battery or replacing the faulty one to see if it resolves the propeller spinning problem.

Carmen J. Moore
Carmen J. Moore

Carmen J. Moore is an expert in the field of photography and videography, blending a passion for art with technical expertise. With over a decade of experience in the industry, she is recognized as a sought-after photographer and videographer capable of capturing moments and crafting unique visual narratives.

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