Dreame Robot Vacuum Error Code 1 — Fix

What it means

Dreame Error Code 1 means the LiDAR sensor is blocked or cannot spin freely.
Wipe the transparent LiDAR tower on top of the robot with a soft cloth, make sure nothing is obstructing its rotation, and restart.

Affected Models

Dreame L10 Pro
Dreame L20 Ultra
Dreame X30
Dreame D10 Plus
Dreame Bot Z10 Pro

Common Causes

Dust or debris on the LiDAR sensor window
Sticker, tape, or packaging material blocking the sensor tower
Debris preventing the LiDAR tower from rotating
Hardware sensor failure — rare

How to Fix It

Turn the robot off.

Power off the Dreame robot before cleaning the sensor.
Locate and clean the LiDAR tower.

Find the cylindrical sensor tower on the top centre of the robot.
Gently wipe its transparent window with a soft, dry microfiber cloth.
Do not press hard — the sensor window can scratch.
Check the tower can rotate freely.

Gently try to rotate the LiDAR tower by hand — it should spin freely with minimal resistance.
If it is stiff or stuck, check for a piece of debris, a sticker, or a hair wrapped around its base.
Never force the tower.
Power on and test.

Turn the robot on.
The LiDAR tower should begin spinning within a few seconds as the robot starts up.
Press Clean and confirm Error 1 no longer appears.
Contact support if error persists.

If the LiDAR tower is clean and spins freely but Error 1 persists, the sensor itself may have failed.
Contact Dreame support — the robot may be under warranty.

Frequently Asked Questions

What does the LiDAR sensor on a Dreame robot vacuum do?

LiDAR stands for Light Detection and Ranging. It is a spinning laser sensor that measures distances to walls and furniture, allowing the robot to build an accurate map of your home and navigate without bumping into objects.

Will Dreame Error 1 clear by itself?

No. Error 1 requires manual cleaning of the LiDAR sensor. The robot will not resume navigation until the sensor is confirmed clean and able to rotate.