Robot vacuum cannot find or leave the charging dock; E7 or docking sensor error appears.

Safety first: Keep the robot on the floor while testing to avoid drops.

Steps to try:

• 1. Clean front sensors: Wipe the front bumper and any dark plastic windows with a soft, dry cloth to remove dust and fingerprints.
• 2. Check dock placement: Ensure the Gorenje dock is on a flat surface with at least 0.5 m clearance on each side and 1.5 m in front. Avoid placing it in direct sunlight or under strong lighting that can interfere with IR signals.
• 3. Re‑dock manually: Place the robot about 0.5 m in front of the dock, facing it, and press the Home/Dock button. Observe if it approaches and aligns correctly.
• 4. Inspect bumper movement: Gently press the front bumper; it should move freely and spring back. If stuck, clean around the bumper edges.
• 5. Internal check (advanced): If the robot consistently fails to see the dock, the IR receiver board or its cable may be faulty and require replacement.