dewalt 20v weed eater not working: Troubleshoot Now

If your dewalt 20v weed eater not working, it could be due to a faulty battery or a malfunctioning motor. Check the battery connection and charge status before troubleshooting further.

Dewalt is a reliable brand known for producing quality power tools, including weed eaters. However, like any other tool, your dewalt 20v weed eater may stop working due to a number of reasons. A frequent issue many dewalt users face is the weed eater not working.

While it can be frustrating, there are steps you can take to troubleshoot the problem. This article will highlight some of the causes of the issue and provide some solutions to get the weed eater back up and running. So, whether you are a professional landscaper or a homeowner, keep reading to find out what to do when your dewalt 20v weed eater is not working.

Common Problems With Dewalt 20V Weed Eater

Maintaining a beautiful garden requires proper equipment, and if there is one tool that every gardener should have in their toolkit, it is a weed eater. The dewalt 20v weed eater is a quality tool with excellent features, but it can run into some common problems that can affect its performance.

Let’s look at some of the common problems you might encounter with your dewalt 20v weed eater, along with their possible solutions.


Overheating is a common issue that can occur if you use your dewalt 20v weed eater for prolonged periods without giving it time to cool down. Overheating can lead to the failure of the tool’s internal components, which can cause permanent damage and lead to expensive repairs.

Here are some steps you can take to avoid overheating the dewalt 20v weed eater.

  • Allow ample time for the tool to cool down after extended use.
  • The tool’s air vents should be free of debris and clean from dirt.
  • Check if the tool’s head is correctly attached and tightened, preventing vibration.
  • Always follow the recommended operation and maintenance guidelines of the manufacturer.
dewalt 20v weed eater not working

Battery Issues

When it comes to battery issues, users of the dewalt 20v weed eater may encounter problems charging or maintaining power. Here are some steps you can take to avoid common battery-related issues.

  • Confirm the charger is connected to a power source.
  • Clean the battery terminals to ensure they are free of dirt and debris.
  • Confirm the recommended battery type and voltage is in use.
  • The battery should not be exposed to heat or cold temperatures. Store it in a dry and room temperature location when not in use.

Motor Problems

The dewalt 20v weed eater motor can suffer from problems such as overloading, clogging, and debris accumulation. Taking proper precautions and maintaining your equipment will reduce the likelihood of any issues.

  • Remove the debris and grass accumulation frequently to maintain optimal performance
  • Stop operation immediately if you perceive overloading and clogging.
  • Follow all operational guidelines provided by the manufacturer to avoid overloading of the motor.
  • Check the trimmer head for debris accumulation frequently.

Line Feed Issues

A dewalt 20v weed eater can have line feed problems, namely line breakage, or feeding issues. Here are some tips to overcome these problems.

  • Always ensure proper line installation and avoid overloading the spool.
  • The line should be inserted in the right direction and not crossed over each other.
  • Use recommended line diameter for accurate feeding and to avoid breakups.
  • Clean the trimmer head and leave it dry before making any line changes.

Taking care of a dewalt 20v weed eater is easy if you follow the above guidelines. These common problems require minimal effort to avoid or fix. Enhancing the tool’s durability and performance will enhance the quality of your garden.

How To Troubleshoot Dewalt 20V Weed Eater Not Working?

As much as we love our dewalt 20v weed eater, it’s not immune to a few glitches here and there. But no worries, we are here to ease your worries and guide you through some troubleshooting tips to get your tool working again.

Let’s dive right into it then, shall we?

Checking The Battery Connection

First things first, let’s start with the obvious. Check if the battery is connected properly before you jump to any conclusions.

  • Remove the battery from the tool and detach it from any charging station
  • Double-check if the contacts on the battery and the tool are clean
  • Reconnect the battery with the tool again

Testing The Battery Voltage

If the battery connection was not the issue, let’s move on to the next step, which is to test the voltage of the battery.

  • Remove the battery from the tool and acquire a multimeter
  • Set the multimeter to the voltage mode
  • Place the multimeter probes on the battery terminals
  • Check the reading.

Checking The Motor Brushes

The motor brushes are the main component that regulates the rotation of the tool, so it’s important to ensure they’re functioning correctly.

  • Unscrew the motor cover to get to the brushes
  • Check if the brushes look worn out.
  • If they don’t appear worn out, reattach the motor cover and proceed to the next step

Inspecting The Line Feed Spool

The line feed spool is the area where the string is held. Sometimes, the issue can be with the spool rather than the mechanics of the tool.

  • Detach the spool from the head of the weed eater
  • Check if the spool is tangled with debris or if the string is wound around it unevenly
  • Clean the spool or adjust the string accordingly

Inspecting The Cutting Head

Last but not least, let’s check the cutting head. It could be that the issue is with the head and not the tool itself.

  • Look closely at the head and check if there’s any debris or tangled string
  • If there is debris or strings wrapped around, carefully remove them
  • Reattach the cutting head to the tool and check if it’s working properly

Troubleshooting the dewalt 20v weed eater may seem like a daunting task, but with our guide, you can do it with ease. Remember, take it one step at a time, and you’ll have your tool working again in no time.

If you are facing Dewalt battery charging issues, must read this blog: Dewalt 20v Battery Says Fully Charged But Not Working

Maintenance Of Dewalt 20V Weed Eater

dewalt 20v weed eater not working

If you own a dewalt 20v weed eater, regular maintenance is crucial to keep it functioning correctly and increase its lifespan. Proper maintenance also saves you money by reducing the need for expensive repairs over time. In this section, we’ll discuss the essential steps you should take to ensure your dewalt weed eater keeps running smoothly.

Cleaning The Weed Eater

Regular cleaning of your dewalt 20v weed eater is necessary to remove debris, dirt, and grass clippings that accumulate during use.

  • Firstly, switch off the weed eater and disconnect it from the power source.
  • Detach the cutting head, spool, and line from the weed eater to expose the motor and its components.
  • Wipe off any debris, dirt, and grass clippings using a clean cloth or brush.
  • Use a small brush to remove any stubborn or hard-to-reach debris from the motor and cutting head.
  • Reassemble the weed eater after cleaning and check that all components are correctly fitted.

Lubricating The Weed Eater

Lubrication is necessary to ensure smooth operation and prevent the weed eater’s motor from overheating, which may cause permanent damage.

  • Disconnect the weed eater from the power source and detach the cutting head, spool, and line from it.
  • Remove the grease cap from the motor and wipe off any debris and dirt from the gear and the grease port.
  • Grease the gears and rotating parts using high-quality grease.
  • Re-fit the grease cap and ensure that it is tightened correctly.
  • Reassemble the cutting head, spool, and line after lubrication.

Storing The Weed Eater

Proper storage of your dewalt 20v weed eater is vital to prevent damage from moisture, dust, and other environmental factors.

  • Clean the weed eater as per the instructions outlined above.
  • Remove the battery and store it separately in a cool, dry place.
  • Store the weed eater in a dry, cool place away from direct sunlight and moisture.
  • Ensure all parts are adequately fitted, and the weed eater is turned off and disconnected from the power source.

By following the above maintenance steps, you can ensure that your dewalt 20v weed eater remains in excellent working condition, lasts longer, and runs smoothly with less need for repairs and replacement parts.

dewalt 20v weed eater not working

Frequently Asked Questions(FAQs):

Why Won’t My Dewalt 20V Weed Eater Start?

Check the battery charge level, check the connection of the battery and charger, and check the cutting line for tangles.

How Long Should The Battery Last On A Dewalt Weed Eater?

The battery on a dewalt weed eater should last between 30 minutes to an hour.

How Do You Replace The Cutting Line On A Dewalt Weed Eater?

Press the lock button to release the spool cover, unwind the old line, add the new line, and reattach the cover.

Can I Use A Different Brand Of Battery On My Dewalt Weed Eater?

It is recommended to use a dewalt battery but if the voltage and size match, you can use a different brand.

What Do I Do If My Dewalt 20V Weed Eater Is Still Not Working?

Check the user manual for troubleshooting, contact customer service, or consider taking it to a professional for repair.


It’s important to keep your dewalt 20v weed eater in tip-top shape to ensure it functions properly. If you’re experiencing problems with it, there are a few things you can try before calling in a professional. Firstly, check to make sure the battery is fully charged, and that you’re using the correct spool and line.

Additionally, inspect the trimmer head for any visible wear and tear, and try cleaning any debris or blockage. You may also consider reaching out to dewalt customer service for assistance or researching further troubleshooting tips online. Remember, with a little bit of patience and effort, you can get your dewalt 20v weed eater back up and running without breaking the bank.

Keep these tips in mind and enjoy a well-kept lawn all season long.

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