Robot vacuum shows E7 and cannot find or leave the charging dock properly

Safety first: Unplug the charging dock from the wall before cleaning contacts.

• Step 1 – Clean robot contacts: On the rear or underside of the robot, locate the metal charging pads. Wipe them with a dry cloth. If corroded, gently rub with a pencil eraser and wipe clean.
• Step 2 – Clean dock contacts: Wipe the metal contacts on the dock with a dry cloth. Ensure they are not bent or recessed.
• Step 3 – Check dock power: Plug the dock back in and verify the dock indicator light is on. Confirm the power adapter is the original OKP unit.
• Step 4 – Clear around dock: Remove obstacles within 1 meter on each side and 2 meters in front of the dock so the robot can approach straight.
• Step 5 – Test docking: Place the robot 0.5–1 m in front of the dock and press the Home/Recharge button. If it still fails and shows E7, the charging contact assembly or IR docking sensor may be faulty.