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DeWalt 40v Trimmer Problems & Solutions: An Easy Way to Troubleshoot All Your Issues!

by Jason Ryffe
Reading time: 12 min Prefer to listen?

Do you have a DeWalt 40v trimmer that is giving you trouble? What are the major DeWalt 40V trimmer problems? If you are facing issues with your grass trimmer, you are not alone. Many people have had problems with their DeWalt 40v trimmers and have had to take them back to the store or contact customer service for help.

The DeWalt 40v trimmer is a popular choice for many professionals, but it’s not without its problems. Since the problems are so irritating, we have brought you some quick solutions. With a little bit of troubleshooting, you should be able to get your trimmer up and running again in no time.

Reasons for DeWalt 40v Trimmer Problems: Quick Rundown

ProblemsFixes
Starting problemCheck battery and other connections
Leaking batteryBattery needs replacement
The Trimmer line has broken.Attach a new trimmer line
Jammed trimmer headRemove the debris or replace
The battery won’t hold chargeClean the battery and connections
The battery won’t chargeChange battery

If you’re a contractor or gardener, you know that a good trimmer is a vital tool for keeping your property looking neat and tidy. As you’re facing DeWalt 40v Trimmer issues, here are the solutions to some of the most common problems that users generally have with this trimmer.

A. DeWalt 40v Trimmer General Issues

i) Broken Trimmer Line

The first problem is that the string trimmer line breaks easily. This is a common issue with all trimmers, but it seems especially problematic with the DeWalt 40v trimmers.

Solution: When your trimmer line is broken, it will stop working. Follow the steps below to replace the trimmer line.

  • Remove the trimmer head from the trimmer.
  • Cut off the damaged trimmer line from the spool.
  • Wrap the new trimmer line around the spool.
  • Reattach the trimmer head to the trimmer.

The good news is that DeWalt sells replacement lines that are less prone to breaking.

ii) Jammed Trimmer Head

Another issue is that the trimmer head can become jammed easily. This is usually caused by debris getting caught in the head, and it can be very difficult to clear the jam. This can also happen due to a tangled line caught up in the spool. Both issues can cause a jammed trimmer head which is a huge problem during the trimming session.

Solution: When the trimmer head has jammed because of the debris build-up, you need to clean it very well in the first place. Then, use some good-quality grease and wipe it off of the head so that the trimmer head rotates perfectly. Therefore, the gears will move smoother than before.

And to fix the tangled line, follow the given steps below-

  • Remove the trimmer head.
  • Then, remove the spool.
  • Remove the line from the spool.
  • And then rewind the line onto the spool.
  • Replace the spool and the trimmer head.

iii) Starting Problem

Finally, some users have reported that the trimmer is difficult to start. Even though the DeWalt 40v is a powerful battery for trimming, it can be pretty frustrating if the trimmer won’t start, especially if you have an unfinished job. This can usually happen due to a problem with the battery.

Solution: We have discussed the battery issue in the next section broadly. So, troubleshoot the problem accordingly. However, if the problem is due to a dead battery, then recharge it. Otherwise, replace it with a DeWalt battery replacement even though it is a little expensive.

If you’re having problems with your DeWalt 40v trimmer, these are some common issues. Luckily, most of them can be remedied with replacement parts or a little bit of DeWalt 40v trimmer troubleshooting. Now, let’s have a look at the DeWalt 40v battery issues.

B) DeWalt 40v Battery Problems

If you own a DeWalt 40v battery, you may have experienced some problems with it. Here are some common issues that people have reported:

i) The battery won’t hold any charge

This is probably the most common problem people have with their DeWalt 40v battery. It can be frustrating because it means that your battery won’t work when you need it. There are a few things you can try to fix this problem:

  • Make sure the battery is clean. DeWalt trimmer batteries can get dirty, and this can prevent them from charging properly. Clean the battery terminals with a cotton swab dipped in vinegar or rubbing alcohol.
  • Try charging the battery with a different charger. Sometimes, the problem is with the charger and not the battery. However, it is better not to use a charger from a different brand to recharge the trimmer battery on a regular basis.
  • If the battery still doesn’t hold a charge, it may be because of a technical issue. And maybe it is time to replace it.

ii) The battery won’t charge

If your trimmer battery doesn’t charge, there are a few things you can try:

  • Make sure the charger is working and plugged in properly.
  • Check the outlet the charger is plugged into. Make sure there’s power flowing to it.
  • Try charging the battery with a different charger.
  • If the battery still doesn’t charge, it may be time to replace it.

iii) The battery dies too quickly

If you find that your battery dies too quickly, maybe your trimmer is pushing more power than its limit. Besides, it is common for the 40V DeWalt trimmer having such battery dying issues.

And if you have a large yard to work on, switching to a more powerful DeWalt trimmer like the 60V trimmer would be the best option. Otherwise, you need to recharge after every use.

Again, you may also want to try a different brand of battery. Some batteries don’t work well with DeWalt tools.

iv) The battery is leaking

If you notice that your trimmer battery is leaking, it’s important to take action right away. Battery acid can damage your tools and clothing. Clean up the battery acid leak as soon as you notice.

Warning: Do not use a leaked or damaged battery!!

These are some of the most common problems people have with their DeWalt 40v battery. If you’re experiencing any of these problems, try the tips above. If the problem persists, it may be time to replace the battery.

This Video Will Help You Too!

Frequently Asked Questions (FAQs)

How Long Do DeWalt Trimmers Last?

When it comes to trimmers, DeWalt is a name that is synonymous with quality. It is not certain how long your DeWalt trimmers will last since it depends on a number of variables. For example- the frequency of use, trimmer maintenance, power level, etc. However, in general, you can expect a DeWalt trimmer to last 3-5 years with regular use.

How Long Do 40v Trimmers Last?

There is no accurate answer to this question as it depends on a number of factors, like- how often you use the trimmer, how well you maintain it, and of course, the quality of the trimmer. However, with proper care and maintenance, a 40v trimmer should last at least several years. And if you want to know how long the battery lasts, then I should say the battery lasts between 25 to 40 minutes at best, depending on various factors.

Who Makes DeWalt Gas Trimmers?

DeWalt gas trimmers are made by the DeWalt company, which is based in the United States. The company has been making power tools since 1922, and it currently offers a wide range of products that includes everything from drills and saws to trimmers and routers.

Final Thoughts

If your DeWalt 40v trimmer isn’t working as it should, there are a few things you can do to troubleshoot it.

First, make sure that the trimmer is properly assembled and that all of the connections are tight. Next, check the trimmer line to see if it needs to be replaced. If the line is frayed or broken, it will need to be replaced. Finally, if your DeWalt 40V trimmer problems still persist, you may need to replace the batteries.

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