iRobot Roomba Error Code 52: How to Fix It
Easy 15-30 minutes Medium Severity
Verified June 2026
- Error Code
- 52
- Brand
- iRobot Roomba
- Product Type
- robot_vacuum
- Severity
- Medium
- DIY Difficulty
- Easy
- Estimated Fix Time
- 15-30 minutes
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Tools You'll Need
- Phillips screwdriver
- Scissors or seam ripper
- Dry toothbrush or stiff-bristle cleaning brush
- Cotton swabs
- Clean cloth or paper towels
How to Fix Error Code 52
-
Power Off and Flip the Roomba
Always power the Roomba fully off before servicing. Do not rely on simply pressing pause — a full shutdown prevents accidental startup and potential injury from spinning brushes. -
Remove the Right Side Brush
-
Clear Hair and Debris from the Brush
-
Clean the Side Brush Axle Post
-
Inspect the Side Brush Module for Damage
-
Reinstall the Side Brush and Test
-
Replace the Side Brush Module if Error Persists
Before purchasing a replacement module, confirm your exact Roomba model number. Modules vary between Roomba series (600, 800, 900, i-series, j-series, etc.) and are not universally interchangeable. -
Perform a Factory Reset if Error Continues
A factory reset will erase saved maps, schedules, and preferences on Wi-Fi-connected models. Back up any preferred settings in the iRobot HOME app before resetting.
Parts You May Need
Right side brush
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Side brush motor module
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Side brush retaining screw
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Right side brush
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Side brush motor module
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Side brush retaining screw
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Right side brush
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Side brush motor module
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Side brush retaining screw
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When to Call a Professional
Contact iRobot Support or an authorized service center if: the error persists after replacing the side brush module with a new compatible part; you notice burning smell or visible scorch marks near the brush module (indicating an electrical fault); the Roomba is still under warranty (DIY repairs may void it); or you are uncomfortable disassembling the brush module wiring harness. iRobot offers a support line and a repair program for out-of-warranty units that may be more cost-effective than repeated part replacements.Frequently Asked Questions
What does Roomba Error Code 52 mean?
Error Code 52 means Roomba's right side brush motor has stalled or is unable to spin. The most common cause is hair, string, or debris wrapped around the brush or its axle post. Cleaning the brush and axle resolves the issue in most cases.
How do I know which brush is the 'right' brush on my Roomba?
When looking at the underside of your Roomba, the right side brush is the small star-shaped spinning brush located toward the right side of the robot. On most Roomba models, there is only one side brush, which is always on the right side.
Can I run my Roomba without the side brush while I wait for a replacement?
Yes, you can run the Roomba without the side brush temporarily. It will still pick up debris from the center of its path using the main roller brushes. However, edge and corner cleaning performance will be significantly reduced until the side brush is replaced.
How often should I clean the Roomba side brush to prevent Error 52?
iRobot recommends cleaning the side brush and its axle at least once a week, or more frequently if you have pets or long-haired occupants in your home. Regular cleaning prevents hair and debris buildup that causes the motor to stall and trigger Error 52.
My Roomba shows Error 52 right after I replaced the side brush — what's wrong?
If Error 52 appears immediately after installing a new side brush, the brush may not be seated correctly on the axle post. Power off the Roomba, remove the brush, and reinstall it making sure the flat edge or notch on the brush hole aligns with the matching shape on the axle. Also confirm the retaining screw is snug. If still present, the side brush motor module itself may need replacement, not just the brush.