Symptoms
- Visible dirt or crumbs left after a full cycle
- Robot seems to skip areas of the room
- Cleaning pattern looks random or incomplete
- Suction feels weak compared to before
Likely causes
- CommonFull dust binA full bin reduces both suction and storage space, so the robot stops picking things up effectively.
- CommonDirty or worn brushesHair-tangled main or side brushes reduce how well dirt gets swept into the intake.
- PossibleDirty sensors causing poor navigationSensor grime can make the robot avoid or repeat areas incorrectly, missing spots.
- PossibleClogged filter reducing suctionA dirty filter chokes airflow just like in a regular vacuum.
- Less commonCleaning mode set too lowAn eco or quiet mode uses less suction power, which may not be enough for heavier dirt.
What to do
- Empty the dust bin after every cleaning cycle, not just when full.
- Remove and clean hair from the main brush and side brushes.
- Wipe down all sensors on the front and underside with a dry cloth.
- Rinse or replace the filter according to the manual's schedule.
- Switch to a higher suction or cleaning mode in the app for heavily soiled areas.
- Check the map in the app to see if any rooms or spots are being skipped.
- Run a spot-clean cycle over a specific dirty area to test improved performance.
Tools and parts
- Dry cloth
- Scissors for tangled hair
Robot vacuum filterSearch: “robot vacuum filter replacement”
Robot vacuum main brushSearch: “robot vacuum main brush replacement”
When to call a pro
If cleaning quality stays poor after maintenance, contact the manufacturer's support about a possible motor or sensor issue.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.