Error 18 — Docking issue

How to fix it

1. Wipe the metal charge contacts on the robot (underside front) AND on the Home Base with a dry cloth or pencil eraser.
2. Verify the Home Base power LED is lit — if not, check the outlet and power adapter.
3. Clear all objects within 1.5 ft on each side and 4 ft in front of the dock.
4. Manually dock the robot to confirm it charges.
5. Clean the IR window on the front center of the robot bumper.

Why it happens

Typical signs: 'Error 18' voice prompt · Robot returns to dock but doesn't connect · Battery doesn't charge after returning

• Dirty charge contacts Metal pads on the robot or dock are covered in dust or oxidation.
• Obstacle near dock Objects within the 1.5 ft side / 4 ft front clearance area.
• Dock unplugged or no power Home Base lost power and isn't emitting IR docking beam.
• IR docking sensor dirty Dust on the front IR sensor on the robot.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

• Roomba Home Base / charging dock Common replacement
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