Hi there,
I have an Eufy RoboVac 11S which seem to have developed a problem.
It now show a solid red light after it has been charging.
Any ideas?
Regards
Goran
Eufy RoboVac 11S Solid red light after charging
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@gaasen are there any beeps along with the red light.
Below are the Meanings of Indicators:
Off: No indicator
Breathing orange: Charging
Solid blue: Standby / Cleaning / Fully charged
Solid orange: Low power and returning to charging base
Flashing / Solid red + Beeping: RoboVac has an error (this is your case - error) (can you confirm the beep)
These are the meanings of red indicator light when it is solid:
One beep = RoboVac’s left/right wheel is stuck. Turn off RoboVac and remove any hair or debris from the left/right wheel.
Two beeps = RoboVac’s side brush is stuck. Turn off RoboVac and remove any hair or debris from the side brush.
Three beeps = RoboVac’s suction fan is stuck. Turn off RoboVac, then remove and empty the dust collector. Make sure the suction inlet is not blocked by any hair or debris.
Four beeps = RoboVac’s rolling brush is stuck. Turn off RoboVac and remove any hair or debris from the rolling brush.
Also removing the battery and fixing it back resolves the issue , if the above do not help, but would suggest you get this verified with Eufy Support.
Contact eufy customer service team via the below:
Email: support@eufylife.com
Livechat: www.eufylife.com
EufyHome app－>Help－>Contact Us－>Feedback/Chat/Call us
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This helped me out and cured “Old Willy” from such a disease
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Good to see that the removal and reinsertion of the battery have fixed this problem for some people.
In my case however that made no change.
Still, when I put the Eufy on charge, the light turn red after a few seconds, and then stay solid red.
Would suggest you get to Eufy Support at the earliest 
if you get a red light (usually with no beeps or 4 beeps repeated 5 times) while charging , in my experience you need to replace your battery. I have brought many of these units back to life by doing that.
I guess like with all batteries, they do have a tendency to fail after many years of solid service, see if you can get a spare off eufy, if not there seem to be loads on eBay.
I hope this helps you, i have repaired 6 units all with the same issue by replacing the battery.
Thanks
There are EUFY replacement batteries for the RoboVac 11S to be found at amazon.
Or you can order such a battery directly from EUFY
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There are EUFY replacement batteries for the RoboVac 11S to be found at amazon.
Or you can order such a battery directly from EUFY
For anyone finding this via search, it’s definitely the battery going bad. I took it out of the robovac to let it cool down, 1 hour later it was still warm to the touch. It was discarded (the proper environmentally friendly way) and a new battery was put it. Worked like a charm. I’ve used the same battery (the one that went bad one day) for 2 years now. I guess it was time.
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Of course the battery should be checked from time to time.
I swapped it meanwhile.
All is perfect now again with “old Willy”.
Younger and better than ever.