Dewalt Staple Gun Not Working? Troubleshoot with These Tips

If your dewalt staple gun not working, first ensure it is properly loaded and the safety latch is engaged. If the issue persists, check for any obstructions in the stapler’s nose or magazine, and clean or replace it as necessary.

Additionally, ensure the air pressure in your compressor is sufficient for the staple gun’s requirements. If problems still persist, troubleshooting may require disassembling the tool and identifying any damaged or worn parts. Regular maintenance, including cleaning, lubricating, and replacing worn parts, is key to keeping your staple gun in good working order and avoiding performance issues.

Ensure you are using the appropriate staples for the job, and always follow safety procedures when using your tool. A staple gun is a valuable tool for quickly and efficiently securing materials together. When it stops working, it can be frustrating and hinder progress. Fortunately, many issues can be resolved quickly with some basic troubleshooting steps. Whether you are a DIY enthusiast or a professional contractor, understanding how to diagnose and fix common problems with your dewalt staple gun can save you time and money.

This article will explore some of the most common issues and provide tips on how to resolve them. We’ll cover everything from proper loading and safety procedures to more advanced troubleshooting steps. With these tips in hand, you’ll be able to get back to work quickly and confidently.

Common Causes Of Dewalt Staple Gun Not Working

dewalt staple gun

If you are a DIY enthusiast or a professional carpenter, a staple gun is an essential tool in your toolkit. However, issues may come up when the equipment fails to operate as it should. The dewalt staple gun is a trusted brand that offers a reliable tool, but there may be times when it fails to work.

This article looks at the common causes of dewalt staple guns not working and possible solutions.

Insufficient Air Pressure

One of the most common causes of a dewalt staple gun not working is insufficient air pressure. The proper air pressure for the equipment is between 70 and 120 psi. If the air pressure is low, the tool may fail to operate, which can be frustrating.

  • Check the air compressor to ensure it is functioning correctly.
  • Make sure you have enough air pressure as recommended by the manufacturer.
  • Examine the hose to ensure it is not bent, kinked, or leaking air.
  • Confirm that the staple gun’s air fitting is correctly connected to the hose.

Jammed Staples

Another issue that causes the dewalt staple gun not to work is jammed staples. This issue can occur if you don’t load the staples properly or use the wrong type of staples.

  • Turn the gun upside down and shake it to remove any jammed staples.
  • Open the chamber and remove the remaining staples carefully.
  • Use only the recommended staple size for the equipment.
  • Ensure that the staples are correctly loaded in the chamber.

Worn Out Parts

Over time, the dewalt staple gun’s parts such as the trigger valve or piston may wear out, leading to the tool’s failure to work.

  • Check for any visible damage on the parts and replace them as required.
  • Clean all the parts and lubricate them with the recommended oil.
  • If the issue persists, the tool may require professional service.

Knowing the common causes of dewalt staple guns not working and how to solve them can save you time, money, and frustration. Remember to follow the manufacturer’s instructions when using and maintaining the equipment to ensure it operates correctly.

Troubleshooting A Dewalt Staple Gun Not Working

Dewalt staple guns are a reliable tool for heavy-duty stapling tasks, but like all tools, they can experience issues and stop working. If your dewalt staple gun stops firing or seems to shoot blanks, there could be a few reasons for the malfunction.

In this section, we will cover the basics of troubleshooting a dewalt staple gun that is not working.

Test The Air Pressure

Air pressure is critical for the proper functioning of a pneumatic staple gun like the dewalt staple gun. Without sufficient air pressure, the gun will not fire. Here are some steps to test your air pressure.

  • Check the air compressor gauge to make sure it is set to the correct psi for the gun you are using. Dewalt staple guns typically require 70-120 psi to function correctly.
  • If the air pressure gauge is below the required psi, then adjust the pressure until it reaches the minimum required psi.
  • Test the air pressure with a separate gauge if you are unsure if your air compressor gauge is reading correctly.

Inspect The Staples

Staples can cause issues if they are too thick, too long, or bent. Here are some steps to check staples to see if they are causing problems with your dewalt staple gun.

  • Check the staple length to verify that they are compatible with your gun. The dewalt staple guns come with a recommended staple length that you should follow.
  • Check the staple channel to ensure that there are no leftover staples or debris.
  • Make sure the staples are not bent or damaged, which could cause the staple gun to jam.

Check The Trigger

The trigger mechanism can cause issues with your dewalt staple gun, so it is essential to check it. Here are some steps to check the trigger mechanism.

  • Ensure that safety is not engaged.
  • Check the trigger to see if it moves freely without sticking.
  • Examine the trigger mechanism for any signs of wear or damage, such as cracks or broken pieces.

By following the steps above, you can troubleshoot your dewalt staple gun and ensure that it’s functioning correctly. Remember to handle all tools with care and review the manufacturer’s instructions for proper use.

Preventative Maintenance Techniques To Keep Your Dewalt Staple Gun Working

Dewalt staple gun not working: preventative maintenance techniques to keep your dewalt staple gun working

If you’re a professional craftsman, using the dewalt staple gun for stapling materials is a daily activity. However, if your equipment suddenly stops working or becomes sluggish, you can end up wasting time and resources. The most common cause of such issues is a lack of preventative maintenance.

Here are some tips for keeping your dewalt staple gun working properly.

Regular Cleaning

One of the simplest ways to extend the lifespan of your dewalt staple gun is by cleaning it regularly.

  • Remove staples from the magazine and unplug the gun from the power source.
  • Use a soft-bristled brush to clean the exterior of the gun and remove grime and debris.
  • Using compressed air can blow out any dust or debris that accumulates in the interior.
  • Clean the driving mechanism and nosepiece with a clean rag.
  • Reassemble the gun and test it by stapling a few materials.


Lubricating the staple gun is another effective method to ensure it remains in working order.

  • Use only Dewalt-approved lubricants.
  • Apply lubricants sparingly.
  • Ensure you apply them in the right locations only.
  • Always follow proper lubrication instructions as listed in the device manual.
  • Test the tool a few times after lubrication to distribute the lubricant.

Proper Storage

Storing your dewalt staple gun properly is crucial in preventing injury and ensuring the tool remains in top condition.

  • Keep the equipment clean, especially before storage.
  • Store it away from children or unauthorized access.
  • Store the tool in a dry and cool environment.
  • Hang the gun on a wall or store it in an unsealed drawer to avoid condensation and moisture build-up.

Replacement Of Parts

If any parts of your dewalt staple gun become damaged or worn out, it is important to replace them promptly. Doing so can prevent further damage and save you money.

  • Always use genuine dewalt replacement parts for the specific model.
  • Do not use non-dewalt or unofficial parts for repair or replacement.
  • Never tamper with the internal parts of the tool.
  • Replace the parts as directed in the manual.

By following these maintenance techniques, you can prevent your dewalt staple gun from becoming sluggish or completely non-functional. These techniques will also save you time and money in the long run. Remember to conduct these preventative measures regularly, even if the tool seems to be working just fine, in order to keep it in good shape.

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Frequently Asked Questions(FAQs):

Why Is My Dewalt Staple Gun Not Working?

There may be several reasons such as dull blades or jams, low air pressure, or wrong staple size.

How Can I Fix A Jammed Dewalt Staple Gun?

First, unplug the gun and remove the jammed staples. Then, check for any debris or damage and fix it.

What Is The Right Size Staple To Use In A Dewalt Staple Gun?

It depends on the type of project. You may refer to the user manual for recommended staple sizes.

How Can I Maintain My Dewalt Staple Gun?

Regular cleaning, lubrication, and inspection can help maintain your staple gun’s performance over time.

Can I Use Other Branded Staples In My Dewalt Staple Gun?

It is not recommended. It may damage the gun and void its warranty. Always use dewalt-recommended staples.


All in all, if your dewalt staple gun isn’t working, there are a few simple things you can try to get it back in working order. From checking the power source and air pressure to inspecting the staples themselves, troubleshooting this tool can save you time and money.

Additionally, regular maintenance, such as cleaning and oiling, can prevent future malfunctions. It’s worth noting that if these simple fixes don’t solve the problem, it may be time to seek professional help. In any case, taking the time to properly care for your dewalt staple gun can ensure that it continues to perform at its best for years to come.

Lastly, don’t forget that proper usage and safety precautions are crucial to your success and protection when using any tool.

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