Husqvarna Automower Error Code 5: How to Fix It

Medium 30-45 minutes Medium Severity Verified June 2026
Error Code
Error 5
Brand
Husqvarna
Product Type
mower
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-45 minutes
Error 5 on your Husqvarna Automower indicates a problem with the rear loop sensor, which helps the mower detect the boundary wire. This sensor may be damaged, disconnected, or dirty, preventing your mower from properly navigating its cutting area.
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Tools You'll Need

How to Fix Error Code Error 5

  1. Turn off and secure the mower

    Always turn off the mower and remove it from the charging station before performing any maintenance to prevent accidental startup.
  2. Clean the rear sensor area

  3. Inspect sensor connections

  4. Test the sensor

  5. Remove the old sensor

    Take note of wire routing and connector orientation before disconnecting to ensure proper reinstallation.
  6. Install the new sensor

  7. Test the repair

Parts You May Need

Rear loop sensor
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Rear loop sensor
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Rear loop sensor
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Rear loop sensor
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Rear loop sensor
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Rear loop sensor
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Rear loop sensor
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Rear loop sensor
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When to Call a Professional

Contact a Husqvarna authorized service center if the error persists after sensor replacement, if you're uncomfortable working with the internal components, or if you notice damage to the main circuit board or multiple sensors.

Frequently Asked Questions

What causes Husqvarna Automower Error 5?
Error 5 is caused by a malfunctioning rear loop sensor that detects the boundary wire. Common causes include sensor damage from impacts, water damage, accumulated debris, or normal wear over time.
Can I clean the sensor instead of replacing it?
Yes, try cleaning first. Remove grass clippings and dirt from the sensor area with a soft brush. If cleaning doesn't resolve the error, the sensor likely needs replacement.
How much does a Husqvarna Automower rear sensor cost?
Replacement rear loop sensors typically cost between $50-100 depending on your specific Automower model. Check your model number to ensure compatibility before ordering.
Can I still use my Automower with Error 5?
No, your Automower will not operate properly with Error 5 as it cannot detect the boundary wire correctly. This could cause the mower to leave its designated cutting area.
How often do loop sensors need replacement?
Loop sensors typically last 3-5 years under normal use. Factors like weather exposure, impacts from obstacles, and general wear can affect sensor lifespan.