I opened the top of my l30 ultra and it smelled pretty bad. I cleaned the used water tank. Is there anything else I can do to prevent this? There was barely anything in the used water tank, and I empty it when it's done mopping. It had water in it for possibly 1 day.
Please confirm whether it is the base station or the robot that emits the odor. If it is the base station, you can clean the sewage tank and the bottom of the base station, and check whether the dust bag is full. You can replace it. The water tank and the bottom need to be cleaned regularly. If the robot has an odor, you can clean the dust box and rag.