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No loop signal

No loop signal — Boundary wire not detected

husqvarna · Automower 230 ACX/220 AC

What does No loop signal mean?

This fault indicates that the Automower cannot detect the boundary wire signal. This wire is essential for the mower to know the limits of the working area.

Common Causes

  • Boundary wire is broken or damaged.
  • The boundary wire loop is not properly connected to the charging station.
  • The charging station is not powered or is faulty.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check that the charging station is plugged in and powered on.

  2. 2

    Verify the boundary wire connections at the charging station are secure.

  3. 3

    Inspect the boundary wire for visible breaks or damage along its entire length.

  4. 4

    Use a multimeter to check for continuity in the boundary wire if possible.

Browse all codes in this manual (29)
Verified technical data. Last updated: April 2026

Related Faults

2 beeps/10 secondsTwo beeps every 10 seconds — Charging3 beeps/secondThree beeps per second — Fault message5 beeps5 beeps — Blade disc starting
Source: Husqvarna Automower 230 ACX/220 AC
Open Manual (Page 73)Search more codes in this manual