F19
Dyson Real‑time clock or non‑volatile memory fault

Robot shows F19 and may not start a scheduled clean; often associated with clock or memory issues.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Corrupted schedule data, Failing RTC chip, Low backup battery on board, Firmware bug

How to Fix / Troubleshooting

Safety first: No special hazards, but do not open the main housing.

  • Clear schedules: In the Dyson app or on the robot interface, delete all scheduled cleans.
  • Factory reset: Perform a full factory reset according to the user manual. This will clear stored data and may resolve memory errors.
  • Reconfigure: Set the time and schedules again and monitor for recurrence of F19.

If F19 returns after a factory reset, the internal RTC or memory on the main board is likely defective and requires board replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

Main control board (RTC/memory)
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