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Red bar

Red bar on display during test - Value too high or too low

husqvarna · Automower Technical Manual

What does Red bar mean?

When you are performing a manual test of the Power/Motors components on your Husqvarna Automower, a red bar appearing next to a displayed value indicates that the measurement is outside the approved limits. This can apply to battery voltage, battery current, battery temperature, or the current from a solar cell panel if your model has one. A green bar indicates an approved value.

Common Causes

  • Battery voltage, current, or temperature is outside the specified operating range.
  • There is an issue with the solar cell panel (if applicable) preventing correct current output.
  • An internal fault with a motor or power component is causing abnormal readings.
  • Temporary anomaly during the test affecting sensor readings.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Note the specific value (e.g., battery voltage, motor current) that is highlighted with the red bar during the test.

  2. 2

    Stop the manual test and ensure the Automower's battery is fully charged. Allow it to sit for a few minutes before retesting.

  3. 3

    If it's a Solar Hybrid model, inspect the solar cell panel for any obstructions or damage and verify its connections.

  4. 4

    Restart the Automower completely, then re-enter the manual test function to see if the red bar reappears.

  5. 5

    If the red bar persists for a crucial component, contact your national service organization, providing the details of the test and the specific value indicated as too high or too low.

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Verified technical data. Last updated: April 2026

Related Faults

Automower runs at an angle or in an arcAutomower runs at an angle or in an arc — Tilt sensor calibration or defectBlade motor defectBlade motor defect or Blade disc blocked — Blades cannot rotate freelyBoth the mowing and charging times are shorter than usualBoth the mowing and charging times are shorter than usual — High temperatures or low battery capacity
Source: Husqvarna Automower Technical Manual
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