Why does my drill stop spinning?

Why does my drill stop spinning? - Fix It Cape Town

Discover the Potential Reasons Why a Drill Might Stop Spinning During Use

When using a drill, it can be frustrating and inconvenient if it suddenly stops spinning. There can be several potential reasons behind this issue, ranging from simple power problems to more complicated mechanical failures. In this article, we will delve into these potential reasons and provide some insights to help you troubleshoot and fix the problem.

Power Issues: The First Line of Investigation

Before inspecting the mechanical components, it is crucial to check if the drill is receiving power properly. The following power-related issues could be responsible for your drill’s sudden stoppage:

  1. Dead Battery: If you are using a cordless drill, the battery may be depleted. Ensure that the battery is charged and in good working condition.

  2. Faulty Power Cord: For corded drills, verify that the power cord is securely plugged into a working outlet and not damaged. Sometimes, the connection could be loose or the cord might have a break in it, disrupting the power supply.

  3. Tripped Circuit Breaker: In the event of a power surge or overload, the circuit breaker might trip, cutting off the power supply. Check the circuit breaker panel and reset any tripped breakers if necessary.

Mechanical Problems: Digging Deeper

If the power supply is not the issue, it’s time to explore possible mechanical problems that could cause the drill to stop spinning. Here are some common culprits to consider:

  1. Worn Brushes: Electric drills typically have carbon brushes that transfer power to the armature. Over time, these brushes can wear down, causing the drill to lose power or stop spinning altogether. If you have an electric drill, inspect the brushes and replace them if necessary.

  2. Overheating Motor: Extended periods of heavy use can cause the motor to overheat and trigger a thermal safety feature that temporarily shuts off the drill. Allow the drill to cool down before using it again.

  3. Malfunctioning Switch: The drill’s switch can occasionally fail, interrupting the flow of power and leading to the drill’s sudden stoppage. Inspect the switch for any visible damage and consider replacing it if needed.

  4. Gear Failure: Inside the drill’s gearbox, various gears are responsible for transmitting power from the motor to the chuck. If one of these gears wears out or becomes damaged, the drill may stop spinning. Checking the gearbox for signs of wear or broken teeth is essential.

Frequently Asked Questions

Q: How can I determine if the battery is the problem with my cordless drill?

A: First, verify that the battery is fully charged. If it still doesn’t work, test the battery on another device or try using a different battery on your drill to rule out any battery-related issues.

Q: How do I know if the brushes in my electric drill need to be replaced?

A: Inspect the brushes for any signs of wear, such as shortened carbon brushes or excessive sparking. If the brushes are significantly worn down, it’s a good idea to replace them.

Q: Can I replace the switch on my drill by myself?

A: Yes, it is possible to replace the switch on your own. However, if you are unsure about your technical expertise, it’s always best to consult a professional or seek guidance from the drill’s manufacturer.

Q: Can I repair the gearbox of my drill?

A: While it is technically possible to repair the gearbox, it can be a complex task and requires a certain level of expertise. It may be more practical and cost-effective to replace the entire gearbox or even the drill.


A drill that stops spinning during use can be caused by a variety of factors. Starting with power-related issues, such as dead batteries or faulty power cords, is essential. If the problem persists, investigating mechanical components like brushes, the motor, switch, or gearbox becomes necessary.

Remember, safety should be your top priority when dealing with power tools. If you’re unsure about any repairs or troubleshooting steps, consult a professional or reach out to the drill’s manufacturer for assistance. By addressing these potential reasons and taking appropriate action, you can get your drill back in working order and continue with your projects uninterrupted.

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