5 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
Costly or dangerous
L10s Ultra base station middle nozzle pumps water continuously until the tank is empty
An owner reports a large puddle around the self-wash base: the middle nozzle keeps pumping water after the robot leaves, overflowing the basin until the clean-water tank is empty; the owner suspects the nozzle shut-off valve is defective.
What to check. A base-station water leak can flood the floor around the dock; this is a high-severity failure that the owner could not fix by cleaning or factory reset and required contacting Dreame support under warranty.
L10s Ultra leaks water in place and keeps mop pads wet from first use
A Media Markt buyer in Turkey reports the unit leaks water in place from the first use, leaving the mop pads permanently wet so it cannot clean properly; the fault persisted on a replacement unit and after service visits.
What to check. Before buying, check the unit's water delivery and mop system in the first weeks; a leak that survives a replacement unit suggests a recurring design fault, and multiple service trips were needed.
L10s Ultra battery drains to 10-15% after ~70 minutes instead of ~200 minutes
From the same Turkish complaint. The owner reports runtime far below the ~200-minute spec, dropping to 10-15% after about 70 minutes, and says the problem continued on the replacement unit.
What to check. If you rely on long single-pass runs, verify real runtime early; a battery that falls short of spec and is not fixed by a replacement unit is a costly thing to discover later.
L10s Ultra scheduled cleaning stops after first cycle and robot fails to make dock contact to recharge
An owner whose unit ran well for two years reports a scheduled cleaning that stopped after the first cycle, with the planned intermediate charge not happening and the robot sitting in the dock without making charging contact; a friend's identical unit showed the same fault, and the owner attributes it to software.
What to check. If you depend on multi-cycle scheduled cleaning, this failure mode means the robot may stop mid-task and fail to recharge; the owner could not roll back the firmware, so a fix depends on a software update.
Official troubleshooting page: a wet filter can cause abnormal noise during cleaning
From the manufacturer's official French troubleshooting page for the L10s Ultra. It documents abnormal cleaning noise and lists a wet filter as a cause, along with side-brush deformation and tangled main-brush ends.
What to check. Low-severity and owner-fixable: if the unit gets noisy, the official guidance is to let a washed filter dry fully and check the side brush and main brush for tangling before contacting service.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Robot vacuums catalog, version 0.1.2, under the CC-BY-SA-4.0 license.
