Dock status light steady red (tank / bag / water filter)
Where to look: Dock LED, clean-water tank, dirty-water tank, dust bag/bin, water filter in the wash sink.
Dock LED stays steady red — official Ultra troubleshooting: dustbin/bag seating, voltage, clean/dirty tank placement, and water filter click-lock.
Picture
Quick answers
What is wrong?
Dock LED stays steady red — official Ultra troubleshooting: dustbin/bag seating, voltage, clean/dirty tank placement, and water filter click-lock.
What you might notice
- Dock LED steady red
- App dock error
- Wash/empty interrupted
Can I fix this myself?
Often yes with careful cleaning. Difficulty: medium · about 15-30 min. If unsure or it returns after parts cleaning, use mail-in repair.
What you need
- Clean water
- Soft dry cloth
Do this
- Confirm the dustbin or disposable dust bag is fully seated and the dust container cover is closed.
- Check clean-water tank: filled and locked in place. Check dirty-water tank: emptied and locked.
- Unlock and remove the dock water filter from the cleaning tank. Unlock the filter latch, rinse the filter, wipe the cleaning tank with a soft dry cloth.
- Reinstall the filter and press down until it locks with a click.
- Confirm local voltage matches the dock label. Power-cycle the dock.
- If the LED stays red with tanks/bag/filter correct, request dock sensor/electronics repair.
Parts (only if cleaning fails)
- Dock water filter
- Disposable dust bag
Official references
- https://support.roborock.com/hc/en-us/article_attachments/18342044174873