Diagnosis
The bin is not docking properly with the auto-empty port. Error 7 indicates a bin removal or docking fault. The most common cause is a clog in the vacuum's dust bin intake or the base's hose.
How to Fix It
First, remove the robot's dust bin. Inspect the rubber flap and the rectangular intake port on the back of the bin for debris. Clear any blockage. Second, detach the clear debris canister from the base station. Check the flexible hose inside the base for a clog. Remove any obstruction. Reassemble and run a manual empty cycle.
If That Didn't Work
The bin may not be fully seated. Ensure the bin is clicked completely into the robot. Also, clean the bin's electrical contacts and the corresponding pins inside the robot with a dry cloth.
Heads Up
Do not use compressed air to clear the base hose, as it can force debris deeper. Manually remove any visible blockage.