Husqvarna Automower Error Code 12: How to Fix It

Easy 10-15 minutes plus charging time Low Severity Verified June 2026
Error Code
Error 12
Brand
Husqvarna
Product Type
mower
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
10-15 minutes plus charging time
Husqvarna Automower Error Code 12 indicates your robotic mower has an empty battery and cannot return to its charging station. This is typically a minor issue that occurs when the mower runs out of power before completing its cycle or when there's a charging system problem.
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Tools You'll Need

How to Fix Error Code Error 12

  1. Manually Return Mower to Charging Station

    Always turn off the mower using the main switch before handling to prevent accidental blade activation.
  2. Clean Charging Contacts

    Ensure both devices are powered off before cleaning contacts to avoid electrical shock.
  3. Check Charging Station Power Supply

  4. Allow Complete Charging Cycle

  5. Test and Reset if Necessary

  6. Adjust Mowing Schedule if Needed

Parts You May Need

Replacement battery
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Power supply adapter
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Charging station contact kit
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Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
Replacement battery
Check Price on Amazon
Power supply adapter
Check Price on Amazon
Charging station contact kit
Check Price on Amazon
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When to Call a Professional

Contact a Husqvarna service technician if Error 12 continues after trying these steps, if the battery won't hold a charge after 24 hours, or if you notice physical damage to the charging contacts or power supply components.

Frequently Asked Questions

Why does my Husqvarna Automower keep getting Error 12?
Frequent Error 12 codes usually indicate dirty charging contacts, a mowing area that's too large for the battery capacity, or an aging battery that no longer holds a full charge. Clean the contacts regularly and consider adjusting your mowing schedule.
How long does it take to fix Automower Error 12?
The actual troubleshooting takes 10-15 minutes, but you'll need to allow 2-4 hours for the battery to fully recharge. Most Error 12 issues resolve immediately once the mower is properly placed on the charging station.
Can I prevent Husqvarna Error Code 12 from happening?
Yes, you can prevent Error 12 by keeping charging contacts clean, ensuring the charging station has reliable power, and setting appropriate mowing schedules that allow the mower to return before battery depletion.
Is Husqvarna Automower Error 12 serious?
No, Error 12 is a low-severity error that simply indicates a dead battery. It's a normal protective function and doesn't indicate any damage to your mower. Simply recharge and the mower will resume normal operation.