Why Is My Eufy RoboVac 11S So Loud?

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Written By Dinu Sri

Dr H. T. D. S. Madusanka is an electronic expert with 10 years of experience, involved in the research and development of SMART HOME systems.

What is Eufy RoboVac 11S?

This is a good question. Because if we want to find the answer to something, we need to know exactly what we’re talking about.

This is important because when we know what exactly is the problem at hand, we can deal with it in the best manner possible.

Here is an example. If you want to improve your boxing skills, are you just going to say that I want to improve my boxing skills? Of course not. If you want to improve the speed of your jab, you’re going to say I want to improve the speed of my jab.

Now you can see our point, right?

Alright, so Eufy RoboVac 11S is a robot vacuum cleaner. Meaning it’s a device that cleans the dust and other particles/small materials from your environment.

The device is quite expensive at $268.98 (price at the time post published), but it is worth every single cent. To help you form a better understanding of why we’re going to tell you its features. Here are the features of this amazing device.


Incredibly Slim: The device is so slim (2.85”) that it can probably clean the thinnest areas in your home. It’s actually one of the slimmest devices on the market.

Impressive power: It’s small, but it doesn’t mean it’s not sufficient. Actually, the power of this device is incredibly impressive (1300PA). It can usually clean even the sticky material in just a single try.

Low noise: The noise it makes is incredibly low. It makes as much noise as a small microwave. For a vacuum cleaner, you’ve got to agree it’s quite impressive.

Long life: The battery of Eufy 11S is quite good. Once it’s fully charged it can do the cleaning for 100 mins.

Auto recharging: Once the battery tank is nearly empty, the Eufy 11S finds its charger and starts charging itself.

Durability: This amazing robot vacuum is quite durable as well. It is covered with durable glass at the top, it has infrared sensors for evading obstacles, and it has drop-sensing tech to avoid failures.

FAQs related to Eufy RoboVac 11S

In this section, you know what we’re going to do, right? We’re going to address a few Awful Questions (FAQs) related to Eufy RoboVac 11S.

Oh, our mistake. We thought FAQs stand for Few Awful Questions but we’ve just found out that it stands for Frequently Asked Questions. Just kidding 🙂

Alright, now that your mood is brightened up (which was essential),

Let’s address the most common questions asked about Eufy RoboVac 11S.

Why is my Eufy 11S so loud?

Ans: It’s a pretty good question to ask if you’re experiencing this problem. If you’re not experiencing this problem, then seriously you need to do something more productive with your time.

Alright, so back to the question. There are two things you can do on your own to solve this problem. If they don’t work, don’t worry, because there is a Plan B.

We know you’re excited about hearing about plan B, but first, let’s give plan A a proper try.

1. Grab a bottle of glint and a nice piece of cloth. Now, clean the wheels of the Eufy 11S properly.

Here is why this is important. The wheels are the things that do the moving. If they’ve got a ton of dust or some other material stuck on them, they can create a loud and awful noise.

2. Remove the brush guard and the rolling brush temporarily to see if the noise continues. If it doesn’t, then congratulations you’ve found the solution to your problem.

Now, call the company and have them deliver a new piece of brush guard or rolling brush to your doorsteps.

If this was not your problem, then it’s time to talk about Plan B. Plan B involves calling customer support and asking them to check on your device.

If the rep tells you to do one of the things that we’ve already mentioned, make sure to tell them you’ve tried this and it didn’t work. Then, they will send their guy over.

Why has the suction power become weak?

Ans: Well, there are four things you can do on your own to solve this problem and if none of them works, then you can go ahead with Plan B. Call customer support.

Alright, so here are the 4 things you can do to solve this problem.

1. See if any obstructions are blocking the suction inlet.

2. Remove the filter and brush and replace them with a new one to see whether the problem is solved.

3. See if the filters are wet. If they are, take them out and air-dry them completely before putting them back on.

4. Take out the dust collector and clean it with a thin cleaning brush that could reach all the areas. Make sure to clean it thoroughly before putting it back inside.


By reading this post you’ve found the answer to why Eufy 11S may be loud and now you know what to do about it.

In case anything wasn’t clear, let us know in the comments section and we’ll love to help. If you’ve found the post helpful, make sure to share it on social media so others can benefit as well.