Goods Scene Troubleshooting
iRobot Roomba Plus 400 – AutoWash Dock Error 671 — clean-water tank empty or missing
The dock's clean-water tank is empty or is not detected as installed.
Issue meaning
What this issue means
The dock's clean-water tank is empty or is not detected as installed.
Start here
First checks
Fill the clean-water tank, reinstall it fully in the dock, and make sure it seats correctly before retrying.
Inspection
Area to inspect
Clean-water tank, tank seating and level/detection area.
Goods Scene guidance
What to do next
If a full correctly installed tank still triggers Error 671, inspect tank detection or level sensing before the pump.
Practical guidance is kept separate from manufacturer wording.