Robot vacuum says “Error 7: Spin Roomba’s side wheels to clean” or stops with a wheel error after bumping into obstacles.

Safety first: Power off the robot and remove it from the charger.

Steps to resolve:

• Exercise wheel suspension: Press each wheel up into the body repeatedly to free the suspension. It should move smoothly and spring back.
• Clean around wheel pivots: Use a small brush or compressed air to remove dust and hair from the wheel pivot points and springs.
• Clean underside sensors: Wipe any underside sensors near the wheels with a dry cloth to ensure they are not blocked.
• Test on flat floor: Place the robot on a level surface and start a cleaning cycle. Observe if one side lifts or fails to track properly.

When to replace parts: If the error persists and one wheel does not move freely, replace the affected wheel module or wheel drop sensor assembly.