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Kobalt 80v Mower Problems and solutions

The Kobalt 80v Mower is a great lawn mower for those who don’t want to spend a lot or go with electric or manual mowers. The first problem is that the engine starts and stops intermittently, resulting in a dangerous situation for the user. 

Another concern is about the uneven cutting and vibration from the blade. It doesn’t seem to cut well on dense grass or mulch properly. You might also fetch high speed vibration which leads to damage.

Kobalt 80v Mower
Kobalt 80v Mower

The Most Common Problems in Kobalt 80v Mower

  1. Starting Issues
  2. Beeping Issue
  3. Uneven cutting
  4. High Speed Vibration
  5. Mulching Problem

kobalt 80v mower won’t start

When you start your Kobalt 80v mower and if it doesn’t start, there is a chance that you may have forgotten to charge the battery. In this case, check your batteries and make sure that they are charged before using the mower. 

However, you should still make sure that you check the battery gauge. There might be grass clogged somewhere. It’s important to clean under the deck if clogged with grass.

If you find that your battery is not charging, it might be because it’s completely dead. If this is the case, you can check out our article on how to replace your batteries and start your mower again!

kobalt 80v Mower Beeping Issue

The first thing to do is check the blades and deck to see if they are clogged or not. It is possible for the blade and deck to be clogged with debris and need to be cleaned. 

If they are, clean them with water and a cleaning solution. Check all electric connections as well. If you still hear the beep on your mower after these steps then try checking the battery or replacing it if necessary. 

A clogged fuel filter or faulty battery may cause beeping noises to sound sporadically while mowing. You may find that your mower starts to beep after some use, or it might be a continuous beep. 

This can indicate a clogged connection between the motor and the wiring. It is important to clean these connections when you notice this problem. You should remove the copper windings from the motor & clean and also clean connections of the motor.

Uneven cutting

The Uneven cutting on Kobalt 80v Mower is a common issue that consumers have with the device. The uneven cutting makes it difficult to cut the yard uniformly.

Uneven Cut
Uneven Cut

Plus, there are some problems with the yard scaling. The uneven cutting height of Kobalt 80v Mower can result in uneven cutting and make it difficult to scale a lawn evenly.

The uneven cutting height also causes some areas on the lawn to be rougher and irregular than others. This can be solved by adjusting the height of the grass cutting blade using a wrench and adjusting the mower deck cutting height.

The uneven cutting is also caused by not setting the proper cutting height for this device as well as setting different heights for each mowing pass. In order to avoid these issues, mowers must be adjusted according to their specific lawn requirements.

Check the lawn height during cool and hot weather. The height should be between 1-1/2 and 2 inches tall during cool weather and between 2 and 3-1/4 inches tall during hot weather.

High Speed Vibration

Gas-powered mowers are prone to emitting vibrations that could lead to injuries, especially for other components with a high sensitivity. Also, self-propelled mowers are better as they lack the vibration level and have a good balance of the blades.

Keep an eye out for unexpected and excessive vibration on your Kobalt 80v Mower. This could be a sign of something more serious and needs to be checked out.

If you are experiencing a vibration on the mower, it is probably because your motor shaft is bent. If the blades are vibrating on the mower, this could be due to an issue with the blade set or other issues that may need replacement.

If you examine your blades and determine that they are vibrating, try sharpening and replace them immediately. If sharpening or replacing the blades doesn’t fix the issue, contact Kobalt customer service for assistance.

Kobalt 80V Mower Self-Propelled Not Working

One of the common problems of the kobalt 80v mower is that the self-propelled feature may stop working.

This can happen due to several reasons, such as

  • a faulty drive belt
  • a worn out transmission
  • a clogged air filter
  • or a low battery charge.

To fix this problem, one should first check the battery level and charge it if needed. Then, one should inspect the drive belt and the transmission for any signs of damage or wear and tear.

If the belt is loose or broken, it should be replaced. If the transmission is damaged, it may need to be repaired or replaced by a professional.

Finally, one should clean the air filter and make sure it is not blocked by dirt or debris. A clean air filter can improve the performance and efficiency of the mower.

Dull blades of lawn mower
Dull blades of lawn mower

The best way to avoid this from happening again is to have regular maintenance of your mower and take appropriate precautions while using it.

A very common problem for lawn mowers is that the motor shaft can be damaged due to the excessive vibration. 

With high speed vibration, the motor shaft is not just broken – it would be difficult for a lawn mower to run without damaging other parts in the process. Get professional service in these cases.

Mulching Problem

The mulching blades may become ineffective for wet grass in your yard and it won’t mulch properly. You can solve this issue by waiting until the grasses dry before mowing. Dull battery and tall grass can also cause problems like this.

This is a common problem that many homeowners encounter in their yards. The solution for this problem is to wait until the grass dries out before mowing it again. 

There are some other solutions that you can try as well, like adding more fuel or changing the blade angle to prevent clippings from going into other components, which will cause wear on them and decrease their lifespan.

Grass clogs the blades and prevents the blades from turning. Grass that is wet will weigh more than dry grass, making it harder to push around and clean the clog out of the blades. 

A solution for this problem is to mulch the grass after it gets dry and won’t clog up the blades.


There are some problems with the Kobalt 80v mower. But some steps can solve the issues. If you take care of the mower, you will use it for a long time. And if you keep it clean and sharp, it will be a good companion for your garden’s needs.

When using the mower, always wear gloves to avoid rips and tears on your hands. Use a cleaner to remove any debris that may have caught up in the blades of the mower. 

In addition, make sure you buy an extra set of sharp blades so that when one gets dull, you can change it out with a new one without any problems.

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