husqvarna · Automower Technical Manual
The Automower has collided with an obstacle in the N-field of the charging station, or the charging plate's N-coil is not functioning correctly.
Click steps to track your progress.
Remove any obstacles from the charging plate or its N-field.
Consider moving the charging station if obstacles persist.
Check the N-signal by placing the Automower in test position and using the Quick check function (hold 0 key for 2 seconds). Replace the charging plate if the N value is lower than 100.