Harm & Berta: Error message or strange behavior?

If robot lawnmower Harm or Berta feels a lot of resistance, it will go into Spot mode. This means it will drive in a small circle or spiral shape.

• Make sure the underside of the mower is clean.
• Set the cutting blade higher. The resistance of the grass may be high because the grass is thick and dense and therefore offers a lot of resistance. Replace the blades if necessary.
• The robot can detect the boundary wire up to +/- 15 meters (max 18m). This means that the distance from wire to wire should not be greater than 30 meters anywhere. Over time, the wire will lie deeper and will therefore be more difficult to detect. With an eye to the future, it is therefore wise not to deviate from this.

It can happen that the robot lawnmower Berta or Harm often gives an error message (E2).

• Check that the front wheels extend and retract properly and rotate. As shown below. If this is not the case, clean them and lubricate them with grease or WD40.

• Make sure the underside of the mower is clean.
• Set the cutting blade higher. The resistance of the grass may be high because the grass is thick and dense and therefore offers a lot of resistance. Replace the blades if necessary.

For other errors and messages, consult the manual for solutions;
Handleiding Harm 2.0 page 33 for error messages.
Handleiding Berta page 33 for error messages.

If none of this helps, we can perform a software update on the robot.
To do this, send an email with a clear problem description and what you have already tried, preferably with a video, to service@zoefrobot.nl. You can also send the video via Whatsapp, but make sure we know who it is from and that the above information has been provided.