Husqvarna Automower 430X NERA: No loop signal

What this fault means

The mower cannot detect the physical loop signal or the charging station cannot establish a complete loop.

Safety: Stop the mower and follow the manufacturer safety instructions before physical inspection.

Step-by-step checks

1. Look at the charging-station LED before touching the boundary wire.
2. If it flashes blue, check boundary/guide connectors, known splices and isolate a wire break.
3. If the LED is off, verify the outlet, power supply and low-voltage cable.
4. If the LED is solid red, power-cycle the station once; a persistent red light can indicate station/power hardware failure.
5. If the LED is solid green, the station is transmitting; move the mower close to the station and investigate mower-side signal detection, interference or installation geometry before replacing the loop wire.

Evidence source: Manufacturer/support reference

Evidence checked 2026-08-25. Diagnostic procedures are labelled separately from manufacturer-exact error instructions.

Did one of these checks actually fix the mower?

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