Error 8
iRobot Internal Navigation / Sensor Fault

Robot vacuum says “Error 8: Move Roomba to a new location then press CLEAN to restart” and may spin in circles or stop quickly.

Advertisements

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.

Advertisements

Possible Causes

Bumper sensors stuck or dirty, Internal IMU (inertial sensor) error, Cliff or wall sensors misreading, Loose internal sensor connection

How to Fix / Troubleshooting

Safety first: Turn off the robot and remove it from the Home Base.

Steps to resolve:

  • Clean the bumper: Press the front bumper repeatedly to ensure it moves freely. Use compressed air along the top and sides of the bumper to clear dust from the internal sensors.
  • Clean wall and front sensors: Wipe the front-facing IR window and side wall sensor window with a soft, dry cloth.
  • Reboot the robot: Perform a soft reset (typically by holding CLEAN for 10–20 seconds until you hear a tone, then releasing). Refer to your model’s manual for exact reset steps.
  • Test in a simple area: Place the robot in an open, uncluttered room and start a cleaning cycle to see if the error recurs.

When to replace parts: Persistent Error 8 after cleaning and reset may indicate a failing bumper sensor board or navigation sensor module, which may require professional service.

Advertisements

Repair Difficulty

Hard 4/5

Required Part

Bumper Sensor Board / Navigation Sensor Module
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements