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Low run time (red)

'Low run time' (red) on screen — Battery very low in Boost mode

Dyson · Gen5Detect Vacuum

What does Low run time (red) mean?

The LCD screen displays 'Low run time' surrounded by a red circle. This specific alert appears when the battery charge is critically low while the vacuum is operating in Boost mode, indicating minimal remaining power.

Common Causes

  • Battery charge level is critically low.
  • Continued use in Boost mode when the battery is already low.
  • Heavy power draw from Boost mode depleting the battery quickly.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Immediately connect the machine to its charger, either directly or via the dock.

  2. 2

    Allow the battery to charge until the display shows 100% and blue LEDs confirm full charge.

  3. 3

    Consider switching to Eco or Auto/Med mode to conserve battery life and extend run time.

Browse all codes in this manual (9)
Verified technical data. Last updated: April 2026

Related Faults

3 pulses, Low run time (amber)Machine pulses 3 times and 'Low run time' (amber) on screen — Battery needs chargingBlue LEDs flashBlue LEDs flashing on battery — Machine is chargingBlue LEDs solid for 5s, 100% on displayBlue LEDs solid for 5 seconds and 100% on display — Battery fully charged
Source: Dyson Gen5Detect Vacuum
Open Manual (Page 5)Search more codes in this manual