1. How Does the Robot Vacuum Detect Stairs?
The Narwal robot vacuum is equipped with cliff sensors that use the infrared to detect sudden drops like stairs and automatically stop to prevent falls.
2. How to Ensure Proper Sensor Function?
✅ Keep Sensors Clean
Weekly maintenance: Wipe the drop sensors (located on the underside of the robot) with a dry cloth to prevent dust buildup.
Freo X Ultra Example: Sensors Maintenance
✅ Disable "Stairless Mode"
- If enabled, the robot ignores drop-offs.
- To check: Narwal Freo App > Settings > General > Toggle OFF "Stairless Mode" 👉How to Enable and Disable "Stairless Mode" on Your Narwal Robot?
⚠️ Important Safety Note:
- If your stairs are shorter than 4 inches (10cm) or with Extremely dark/black colored floors, the sensors may not reliably detect them.
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Solution: Set up a No-Go Zone in the App to block off the stair area. 👉How to set up No-Go Zone?