3 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
Costly or dangerous
T20 Omni stops drawing water from clean-water tank within the first year; recurring failure and weak service in Turkey
A verified buyer reports the robot stopped drawing water from its clean-water tank before the first year was up, the fault recurred after service, and the unit failed twice within warranty with inadequate service support.
What to check. In Turkey, confirm the current authorized service provider and warranty terms before buying; this owner found the service provider unclear, waited months, and the fault returned. The water-drawing failure is the recurring complaint tied to this model.
T20 Omni water-delivery pump fails; mop pads stop getting wet despite full clean-water tank
Owners report the mop pads stop getting wet even with a full clean-water tank; the fix is replacing the pump behind the station, which several report recurring (one owner twice) and requiring sending the unit to service.
What to check. Before buying, check whether the water-delivery pump is covered by warranty and how long service takes; owners report roughly a month without the robot and recurring pump failures. A full reset and cleaning the strainer/filter sometimes helps, but the pump replacement is the documented repair.
T20 Omni stops after wetting its mop pads and does not resume the task after returning to base in mopping mode
In mopping mode the robot wets its pads then stops, and after returning to the base to clean the pads it declares the task finished instead of resuming; a factory reset did not fix it.
What to check. Expect that mopping runs may need manual restarts or per-zone selection; owners report a factory reset does not resolve it. Suction-only mode works, so this is specific to the mopping task logic.
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.
