How to Change Side Brushes on Eufy

This guide walks you through how to change side brushes on Eufy robot vacuums quickly and safely. You’ll learn when to replace them, what tools you need, and how to install new brushes correctly for optimal cleaning performance.

Key Takeaways

• Replace side brushes every 3–6 months: Regular replacement prevents reduced edge cleaning and motor strain.
• Use only genuine Eufy parts: Compatible brushes ensure proper fit, balance, and longevity.
• Turn off and flip the robot before starting: Safety first—always power down to avoid accidental activation.
• Clean the brush housing during replacement: Remove dust and hair buildup to maintain airflow and efficiency.
• Test the robot after installation: Run a short cleaning cycle to confirm brushes spin freely and evenly.
• Store spare brushes properly: Keep them in a dry, dust-free place to extend shelf life.
• Check for wear signs monthly: Look for fraying, cracks, or bent bristles to catch issues early.

Introduction: Why Changing Side Brushes Matters

If you own a Eufy robot vacuum—whether it’s the RoboVac 11S, G30, L70, or any other model—you know how well it handles daily messes. But even the smartest robots need a little TLC to keep performing at their best. One of the most overlooked yet essential maintenance tasks is replacing the side brushes.

Side brushes, also called corner brushes or edge brushes, are the small rotating brushes on the front sides of your Eufy robot. They sweep dirt, crumbs, and debris from walls, baseboards, and tight corners into the vacuum’s suction path. Over time, these brushes wear down—bristles bend, crack, or fall out—and eventually stop doing their job effectively. When that happens, your robot may miss spots along edges, leave trails of dust, or work harder than necessary, which can shorten its lifespan.

In this guide, you’ll learn exactly how to change side brushes on Eufy models step by step. We’ll cover everything from spotting when it’s time for a replacement to installing new brushes correctly and troubleshooting common issues. Whether you’re a first-time Eufy owner or just need a refresher, this guide will help you keep your robot vacuum running like new.

When Should You Replace Eufy Side Brushes?

Knowing when to replace your side brushes is just as important as knowing how to do it. Waiting too long can reduce cleaning performance, while replacing them too soon wastes money. Here’s how to tell it’s time:

Signs of Wear and Tear

Look for these common indicators:

• Frayed or broken bristles: If the brush looks uneven or has missing sections, it won’t sweep effectively.
• Bent or curled bristles: Bristles should stand straight out. If they’re splayed or curled, they’ve lost flexibility.
• Cracks in the brush head: Plastic cracks can cause the brush to wobble or break during operation.
• Reduced edge cleaning: If your robot leaves dust along walls or in corners, the side brushes may be the culprit.
• Unusual noises: Grinding, clicking, or rattling sounds may mean the brush is damaged or jammed.

Recommended Replacement Schedule

Eufy recommends replacing side brushes every 3 to 6 months, depending on usage:

• Light use (1–2 cleanings per week): Replace every 6 months.
• Moderate use (3–4 cleanings per week): Replace every 4–5 months.
• Heavy use (daily cleaning, pets, high-traffic areas): Replace every 3 months or sooner.

Pro Tip: Set a calendar reminder every 3 months to inspect your brushes—even if they look fine. Prevention is better than repair!

What You’ll Need Before Starting

Before you begin, gather these items to make the process smooth and safe:

Tools and Materials

• New Eufy side brushes: Always use genuine Eufy replacement brushes (model-specific). Check your robot’s manual or the Eufy website for the correct part number.
• Small Phillips-head screwdriver: Most Eufy models use a single screw to secure each side brush.
• Soft cloth or brush: For cleaning the brush housing and surrounding area.
• Compressed air (optional): Helps remove dust from tight spaces.
• Well-lit workspace: Good lighting prevents dropped screws and ensures you don’t miss any debris.

Safety Precautions

• Power off the robot: Press and hold the power button until the device shuts down completely.
• Remove the battery (if applicable): Some older models allow battery removal for extra safety—check your manual.
• Work on a flat, stable surface: A table or countertop prevents the robot from tipping over.
• Keep screws in a small container: Use a magnetic tray or egg carton to avoid losing tiny parts.

Step-by-Step Guide: How to Change Side Brushes on Eufy

Now that you’re prepared, let’s get to the main event. Follow these steps carefully to replace your side brushes safely and correctly.

Step 1: Power Down and Flip the Robot

Start by turning off your Eufy robot vacuum. Press and hold the power button for 3–5 seconds until all lights turn off. This prevents accidental activation during the process.

Next, gently flip the robot upside down so the underside is facing up. Place it on a soft towel or mat to protect the sensors and wheels. Make sure it’s stable and won’t roll off the table.

Step 2: Locate the Side Brushes

Look at the front corners of the robot. You’ll see two small, round brushes—one on the left and one on the right. Each brush is attached to a rotating hub and secured with a single screw in the center.

The brushes are usually black or gray and have flexible bristles radiating outward. They’re positioned to sweep debris toward the main brush and suction inlet.

Step 3: Remove the Old Side Brushes

Using your Phillips-head screwdriver, carefully unscrew the center screw on one side brush. Turn it counterclockwise until it’s loose enough to remove by hand.

Tip: If the screw is tight, apply gentle pressure while turning. Avoid forcing it, as this can strip the screw head.

Once the screw is out, lift the old brush straight up from the hub. It should come off easily. If it’s stuck, wiggle it gently—don’t pull too hard, as you might damage the motor shaft.

Repeat the process for the other side brush.

Step 4: Clean the Brush Housing

With the old brushes removed, take this opportunity to clean the area. Use a soft cloth or small brush to wipe away dust, hair, and debris from the brush housing and around the motor shaft.

If there’s stubborn grime, use a cotton swab dipped in isopropyl alcohol (70% or less) to gently clean the surfaces. Avoid getting liquid near electrical components.

For tight spaces, a can of compressed air works wonders. Blow out any hidden dust or pet hair that could interfere with the new brush’s rotation.

Step 5: Install the New Side Brushes

Take your new Eufy side brush and align it with the motor shaft. The brush should fit snugly over the hub—there’s usually a small notch or groove that matches the shaft for proper orientation.

Press the brush down firmly until it sits flush against the housing. Then, insert the screw into the center and tighten it clockwise with your screwdriver.

Important: Don’t overtighten the screw. Snug is enough—overtightening can crack the brush or damage the motor housing.

Repeat for the second brush, ensuring both are securely attached.

Step 6: Test the Installation

Before putting your robot back into action, do a quick test. Flip it back over to its normal position and power it on.

Press the “Clean” or “Start” button to begin a short cleaning cycle. Listen for smooth, even rotation of the side brushes. They should spin freely without wobbling, grinding, or making unusual noises.

If one brush isn’t spinning, power off immediately and double-check the installation. Make sure the brush is properly seated and the screw is secure.

Tips for Maintaining Side Brushes

Replacing brushes is just one part of the equation. Proper maintenance extends their life and keeps your Eufy performing at its peak.

Regular Cleaning Between Replacements

Even before it’s time for a full replacement, clean your side brushes weekly:

• Remove the brushes (as described above).
• Use scissors or a seam ripper to cut away tangled hair or string wrapped around the hub.
• Wipe the bristles with a damp cloth to remove dust and grease.
• Let them dry completely before reattaching.

Pro Tip: Keep a small pair of tweezers in your cleaning kit—they’re great for pulling out stubborn debris.

Store Spare Brushes Properly

If you bought extra brushes, store them in their original packaging or a sealed plastic bag. Keep them in a cool, dry place away from direct sunlight and moisture. This prevents the bristles from degrading prematurely.

Monitor Performance Monthly

Every month, run a quick visual check:

• Are the bristles still straight and flexible?
• Is there any visible damage or wear?
• Does the robot clean edges effectively?

Catching issues early saves you from bigger problems down the road.

Troubleshooting Common Issues

Even with careful installation, you might run into a few hiccups. Here’s how to fix the most common problems.

Brush Won’t Spin After Replacement

If the new brush doesn’t rotate:

• Check that the brush is properly seated on the motor shaft.
• Ensure the screw isn’t too tight, which can bind the brush.
• Verify the motor isn’t damaged—listen for a humming sound when powered on.
• Clean any debris that may be blocking the brush housing.

Brush Wobbles or Makes Noise

A wobbly brush usually means:

• The brush is cracked or damaged—replace it.
• The motor shaft is bent (rare, but possible after a drop).
• The screw is loose—retighten it gently.

Robot Misses Edges After Replacement

If cleaning performance hasn’t improved:

• Make sure you installed the correct brush model.
• Check that both brushes are spinning at the same speed.
• Inspect the main brush and filters—clogs can reduce suction.
• Reset the robot’s mapping system if it’s a smart model.

Screw Won’t Come Out

If the screw is stuck:

• Apply a drop of rubbing alcohol or WD-40 to loosen rust or debris.
• Let it sit for 5–10 minutes before trying again.
• Use a precision screwdriver with a good grip—avoid cheap tools that slip.
• If the head is stripped, use a rubber band for extra traction.

Conclusion: Keep Your Eufy Running Smoothly

Changing the side brushes on your Eufy robot vacuum is a simple but vital maintenance task. By replacing worn brushes every 3–6 months and keeping them clean, you ensure your robot continues to clean edges and corners effectively. This not only improves performance but also reduces strain on the motor and extends the life of your device.

Remember: always use genuine Eufy replacement parts, power off the robot before starting, and test the brushes after installation. With these steps, you’ll keep your Eufy vacuum in top shape for years to come.

Regular maintenance might seem like a small thing, but it makes a big difference. Think of it like changing the oil in your car—skip it, and you’ll pay the price later. Stay proactive, and your Eufy will thank you with spotless floors and reliable performance.

Now that you know how to change side brushes on Eufy, you’re ready to tackle this quick fix anytime. Keep this guide handy, set a reminder, and enjoy the peace of mind that comes with a well-maintained robot vacuum.