- Check whether this large, uncut area is in a newly added zone—and whether a passage has been created between it and other already-mowed areas.
- Verify the width of that passage. It must be at least 70 cm wide for the mower to pass through safely.
- Look for obstacles (e.g., toys, garden tools, or low-hanging branches) along the passage that could block the mower’s path.
- Confirm whether any No-go zones have been drawn or mapped inside the uncut area—these would prevent the mower from entering.
- Double-check your selected working area in the app. Make sure the uncut area is included—not just the already-mowed sections.
- Assess the slope of the uncut area. If it’s very steep, it may exceed your mower’s maximum climbing angle (typically up to 25°–35°, depending on the model).
- Check grass height. If the grass is too tall (e.g., over 10 cm), the mower may mistake it for an obstacle. Trim it down to ~10 cm manually first, then restart mowing.
- Open the Roborock app and review the mowing progress. Is the job truly incomplete—or is the mower simply returning to charge due to low battery?
- Ensure rain protection mode is turned off. If enabled, the mower will pause mowing during humid or rainy conditions—even if it’s not actively raining.
- Try starting a new mowing task at a different time. If the issue continues, contact the Roborock Customer Service Team or your local dealer for further support.
Note: Your mower automatically remembers areas it hasn’t fully covered—and will return to complete them in subsequent mowing sessions.
