QV189802

L40Ultra malfunctions

My L40 used to work flawlessly.  I updated the firmware and now the following happens:
1. Does not complete the cleaning task
2. Might clean one room but doesn’t move to subsequent room despite adequate charge
3.  Gets disoriented and cannot return to dock or again returns without completing task
4.  No longer auto empty of dustbin or auto washing of mop pads after cleaning.
5.  Does not record cleaning history
6.  Reset button does not work, unable to actually push.

I have cleaned everything on the device, filters, sensors, base, new dust bag.

Please help!  L40 used to be my favorite and is letting me down.

Last edited by QV189802 on 2025-10-23 22:41

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3 Comment

SuperDreamer 1 Floor
You have to put a pin into that little hole for like 5 seconds  to do reset
Not sure where the little hole you refer to is located? Can you describe it please. Thank you!
 
14 Minutes Ago US Translate
ZN115512 2 Floor
I have the dream 10 ultra and it’s a nightmare. It’s so hard to sit. It’s so hard to get to do anything today. I had it set to mop the dining room and it mopped in one square foot constantly for 10 minutes and never moved. I finally had to send it to the dock.
UID:QV189802 US
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