What if My RoboVac Stops with Error S1? (for L70/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 S1?

This error is triggered when RoboVac’s battery is not functioning properly.  This could be caused by the current state of the battery since lithium-ion batteries generally have a recommended operating temperature of 0°C  to 40°C, or 32°F to 104°F.

 

How Do I Fix Voice Alert: Error S1?

To troubleshoot and fix this specific issue, please follow the steps listed below:

  1. Power off the RoboVac.
  2. Unplug the adapter on both ends, re-connect the adapter to the charging base, then the other end to a different wall outlet. Confirm the power indicator on the charging base lights up.
  3. Clean the pins on the charging base and on the bottom of the vacuum with a dry clean cloth.
  4. Put the RoboVac right in front of / facing the charging base within 6 feet and press the home button to tell it to return. Let it dock on its own. This is to make sure the charging pins are connected properly.
  5. Power on and start the RoboVac to verify it is able to successfully navigate and complete a cleaning cycle without issues.
 

If the issue persists, replacing the battery might fix the issue. You can order the

battery for G10/G20/G30/G40/G+ series , and follow the video below to replace the battery:

 How to Replace RoboVac's Battery (for Bounce series and G series) 

 

If your vacuum is L70 Hybrid, please contact us to order the battery. 

 

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

 

Unresolved icon
254 undefined
FAQ
Video Tutorial
What if my RoboVac charges with a red indicator?
37649 views12 likes/2025-04-07 18:06:39
How to factory reset my RoboVac's WiFi?
32916 views1 likes/2025-04-07 18:24:15
What if My RoboVac Stops with Error S1? (for L70/G Series)
20332 views4 likes/2025-04-07 18:23:27
How to connect RoboVac to WiFi? (For Android)
19593 views10 likes/2025-04-07 18:04:53
What does the status light on RoboVac indicate?
26049 views1 likes/2025-04-07 17:40:36
What if my RoboVac runs with a loud noise?
15017 views2 likes/2025-04-07 18:26:09
eufy Warranty Policy
25356 views1 likes/2024-11-27 10:27:18
How to connect RoboVac to WiFi (For iOS)?
11263 views1 likes/2025-04-07 18:04:52
Download icon
RoboVac G35+/G40+_Manual_EN
Download icon
RoboVac G35+/G40+_Manual_EN+FR+ES
Download icon
RoboVac G40+_Quick Start Guide_JP
Download icon
RoboVac G40 Series EU DOC (T2272/T2273)
Download icon
RoboVac G40 Hybrid+_Manual_EU
Download icon
RoboVac G40 Hybrid+_Manual_EN+FR+ES
View More
Play videoHow to Replace RoboVac's Wheel (for Bounce and G series)
How to Replace RoboVac's Wheel (for Bounce and G series)
Play videoHow to Connect RoboVac to Android Devices
How to Connect RoboVac to Android Devices
Play videoHow to Connect RoboVac to iOS Devices
How to Connect RoboVac to iOS Devices
Play videoHow to Replace the Side Brush Motor of RoboVac
How to Replace the Side Brush Motor of RoboVac
Play videoeufy Clean G+ Series: How to Troubleshoot If RoboVac Stops Collecting Dust
eufy Clean G+ Series: How to Troubleshoot If RoboVac Stops Collecting Dust
Play videoeufy Clean G+ Series: Cleaning and Maintenance of Auto-Empty Station
eufy Clean G+ Series: Cleaning and Maintenance of Auto-Empty Station
View More