What Do Dreame Robot Vacuum Error Codes Mean?

Problem Description

Your Dreame robot vacuum stops and announces an error code or shows an error icon in the app. Understanding what each error code means helps you quickly fix the issue and get your robot cleaning again. Common errors include stuck, cliff sensor, main brush, side brush, and filter errors.

Why This Happens in Real Homes

About 70 percent of Dreame error codes are brush-related (hair wrapped around the main brush or side brush). Cliff sensor errors are the second most common — especially in homes with dark floors, because the sensors misread dark surfaces as drop-offs. LiDAR errors are less common but more serious — if the turret does not spin freely after cleaning, it usually means the LiDAR motor is failing and needs warranty service. Charging errors are almost always dirty contacts or a dock that got bumped out of position.

Symptoms

• Robot announces error and stops
• App shows error icon with code
• Robot stuck error when not stuck
• Cliff sensor error on flat floor
• Main brush error after cleaning
• Filter error with clean filter

Recognize these? Here's what usually causes it.

Common Causes

• Hair wrapped around brushes
• Cliff sensors dirty or blocked
• Robot stuck on obstacle or cord
• Filter clogged or incorrectly installed
• Side brush motor jammed
• LiDAR sensor obstructed

Tools & Requirements

Step-by-Step Solution

1

Identify your error code in the app or on the device

Open the Dreamehome app and check the notification or device status screen — it will show the error number and a brief description. Common error codes: 1-3 are bumper or cliff sensor errors, 4-6 are wheel errors, 7-9 are brush errors, 10-12 are dustbin or filter errors, 13-15 are LiDAR or navigation errors, and 18-21 are charging or dock errors. The voice prompt from the robot also states the error type.

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2

Fix bumper and cliff sensor errors (codes 1-3)

Error 1 means the bumper is stuck — check for debris wedged between the bumper and the body. Press the bumper around its full circumference and make sure it springs back. Error 2 or 3 means the cliff sensors on the bottom are dirty or blocked. Flip the robot over and wipe the 4-6 small sensor windows along the front edge with a dry cloth. These get coated with dust and the robot thinks it is at a ledge.

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3

Fix wheel and movement errors (codes 4-6)

Error 4-6 mean a wheel is stuck or the robot cannot move. Check both side wheels — push them in and they should spring back out freely. If a wheel is stuck, remove hair and debris wrapped around the axle. Also check the caster wheel at the front — it often collects hair. If the robot is on a very thick rug or high-pile carpet, it may get stuck. Move it to hard floor and restart.

4

Fix brush and suction errors (codes 7-9)

Error 7 means the main brush is jammed — flip the robot, remove the brush guard, pull out the main brush, and remove hair wrapped around it and the bearings at each end. Error 8 means the side brush is stuck — remove it (usually one screw) and clear debris. Error 9 is a suction fan error — check that the dustbin is fully seated, the filter is not completely clogged, and nothing is blocking the suction inlet.

5

Fix LiDAR and navigation errors (codes 13-15)

Error 13-15 mean the LiDAR turret on top of the robot is stuck or blocked. Gently spin the LiDAR turret by hand — it should rotate freely. If it is stuck, something may be wedged underneath it. Wipe the turret with a dry cloth. If the error persists, restart the robot and place it in an open area (not under furniture) so it can calibrate. Persistent LiDAR errors after cleaning usually mean the motor is failing — contact Dreame support.

6

Fix charging and dock errors (codes 18-21)

Error 18-21 mean the robot cannot charge or find its dock. Clean the charging contacts on the bottom of the robot and on the dock with a dry cloth or rubbing alcohol. Make sure the dock is against a wall with 1.5 feet of clearance on each side and 4 feet in front. If the robot reaches the dock but does not charge, check that the dock is plugged in and the power adapter LED is on. Try removing the robot and placing it manually on the dock contacts.

7

Reset the robot if error codes persist after cleaning

If the error keeps coming back after you have cleaned the relevant component, do a soft reset: hold the power button for 5 seconds until the robot turns off, wait 10 seconds, turn it back on. If the error returns immediately, try a factory reset in the app under Settings > Reset. This clears the map and schedules but often fixes persistent sensor calibration errors. If the error still persists after a factory reset, the sensor or motor is likely faulty.

Quick Solutions

Still having issues? This is usually the deeper cause below.

Need More Help? Dreame Support

Note: The contact information below connects you directly to Dreame's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.