Robot mower displays E17 and stops when entering narrow passages or complex areas.

Safety first: Turn OFF the mower and unplug the charging station before modifying the boundary wire.

• Review layout: Compare your boundary wire installation with the Parkside manual. Ensure minimum distances from obstacles and that narrow passages meet the recommended width.
• Smooth corners: Replace sharp 90° turns in the wire with smooth curves to help the mower navigate.
• Remove metal interference: Move metal grates, edging, or buried cables away from the boundary wire path if possible.
• Adjust passage: Widen narrow corridors or create a separate mowing zone if the passage is too tight for reliable navigation.
• Update firmware: If your model supports firmware updates via USB or service, ensure it is running the latest version.

Note: This is usually a layout/installation issue rather than a hardware failure.