Bosch Local Obstruction / Sensor Misread

Robot vacuum starts but stops after a few seconds without an error code, often in the same spot.

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.

Possible Causes

Cliff sensors falsely detecting drop, Dark or reflective flooring, Bumper not registering contact, Firmware glitch

Safety first: Turn the robot OFF before cleaning sensors.

1. Move to different area: Place the robot in a different room with light‑colored, non‑reflective flooring and start a cleaning cycle.
2. Clean cliff sensors: Wipe all underside cliff sensors with a microfiber cloth.
3. Clean bumper and front sensors: Wipe the front IR and bumper sensors.
4. Reboot robot: Power cycle the robot and retry.
5. If behavior persists everywhere: A sensor or mainboard fault is likely; schedule service.

Medium 3/5

Cliff Sensor Module

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