Display shows “Error 12 – No power in charging station” and the mower cannot charge.

Safety first: Disconnect the power supply from the wall before handling cables.

• Verify outlet power: Plug another device into the same outlet to confirm it has power. Reset any tripped breakers.
• Check power adapter: Ensure the Gardena-branded power supply is firmly connected to both the outlet and the charging station.
• Inspect cable: Follow the low-voltage cable from the adapter to the station. Look for cuts, crushed sections, or chew marks (rodents). Replace if damaged.
• Check station LED: When plugged in, the station LED should light. If it remains off with a known-good outlet, the power supply or station is likely defective.
• Test with replacement adapter: If available, test with a compatible Gardena power supply to isolate whether the adapter or station is faulty.

Do not attempt to open the power supply or station electronics; replace the faulty unit instead.