What if My RoboVac Stops with Error 21? (for L70/G/G+ series)

RoboVac’s Voice Alerts When It Encounters an Issue
Some of eufy’s RoboVac models provide users with audible voice alerts when the RoboVac encounters an issue. In order to correctly troubleshoot and resolve specific issues of your RoboVac, please first find out the exact voice alert error triggered by the RoboVac.

What Caused Voice Alert: Error 21? (The RoboVac L70/G series are charged by charging base, while the G+ series are charged by auto-empty station)
This error is triggered when the surrounding area near the RoboVac’s charging base/auto-empty station is blocked by objects. This could be caused by having various objects near RoboVac’s charging base/auto-empty station, resulting in RoboVac not being able to successfully return to its charging base/auto-empty station.

How Do I Fix Voice Alert: Error 21?
To troubleshoot and fix this specific issue, please follow the steps listed below:

  1. Pause the RoboVac.
  1. Remove any objects found near the charging base/auto-empty station that could potentially obstruct RoboVac’s path when it navigates back to the base/station. It is also recommended to have a clearance of 1.6 feet on either side and 4.9 feet in front of the charging base/auto-empty station.
  1. Place the RoboVac at approximately 10 feet away from the charging base/auto-empty station.
  1. Start the RoboVac and select the command for the RoboVac to return to its charging base/auto-empty station, and verify if the RoboVac is able to successfully navigate and dock itself on the charging base/auto-empty station without issues.
 

Note: Please make sure the charging base/auto-empty station is connected to a wall outlet and is powered on. RoboVac will not be able to find its charging base/auto-empty station if the base/station is not powered on.

If you still have questions regarding RoboVac’s voice alerts, please contact us for further assistance.

What if My RoboVac Stops with Error 21? (for L70/G/G+ series)
253 undefined
What if my RoboVac charges with a red indicator?
21482 views/9 likes/2025-04-07 18:06:39
How to factory reset my RoboVac's WiFi?
20003 views/1 likes/2025-04-07 18:24:15
What if My RoboVac Stops with Error S1? (for L70/G Series)
11121 views/4 likes/2025-04-07 18:23:27
How to connect RoboVac to WiFi? (For Android)
9360 views/9 likes/2025-04-07 18:04:53
What does the status light on RoboVac indicate?
14355 views/1 likes/2025-04-07 17:40:36
What if my RoboVac runs with a loud noise?
6520 views/2 likes/2025-04-07 18:26:09
How to connect RoboVac to WiFi (For iOS)?
6005 views/1 likes/2025-04-07 18:04:52
eufy Warranty Policy
16116 views/1 likes/2024-11-27 10:27:18
‬⁡‌​⁢‬⁣‬‌⁢⁣‌⁣⁢⁢​⁤​⁣‬‬​‌​​⁣‌⁡‍‬​‬‍⁢⁤‍⁣​‍‌​‬⁢【T8010】【HomeBase 2】EU Declaration
T8113S_EU Declaration of Conformity
eufyCam_2C_Pro_Set_Manual_us
RoboVac 30C_Manual_EN
video_Doorbell_2K_(Wired)_Manual_us
Motion_Sensor_manual_us
View More
How to Connect RoboVac to iOS Devices
How to Connect RoboVac to iOS Devices
eufy 3-in-1 E20: Unboxing and Quick Start Guide Video
eufy 3-in-1 E20: Unboxing and Quick Start Guide Video
How to Install eufy Security Video Doorbell (Wired)
How to Install eufy Security Video Doorbell (Wired)
How to set up eufy Security Video Doorbell (Battery-Powered)
How to set up eufy Security Video Doorbell (Battery-Powered)
How to Install eufy Security Floodlight Camera
How to Install eufy Security Floodlight Camera
eufy Security App Functions
eufy Security App Functions
View More