E7
Rowenta
Cliff / Anti‑Drop Sensor Error
Robot stops near stairs or dark carpets and shows E7; may refuse to move forward
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Dirty cliff sensors, Damaged infrared emitter/receiver, Loose cliff sensor harness, Strong ambient light interference under robot
How to Fix / Troubleshooting
Safety first: Turn the robot OFF and place it on a stable table or floor.
- 1. Locate cliff sensors: On the underside, find the small downward‑facing windows near the front edge (usually 3–4 sensors).
- 2. Clean sensors: Wipe each sensor window with a soft, dry microfiber cloth. For stubborn dirt, lightly dampen the cloth with water or isopropyl alcohol and dry immediately.
- 3. Test on light floor: Move the robot to a well‑lit, light‑colored hard floor and start a cleaning cycle. Avoid placing it near stairs during testing.
- 4. Check for physical damage: Inspect the sensor windows for cracks or deep scratches. If one is damaged, the entire cliff sensor module may need replacement.
- 5. Internal check (advanced): Remove the bottom cover and verify the cliff sensor harness is firmly connected to the main PCB.
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Repair Difficulty
Medium
3/5
Required Part
Cliff Sensor Module
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