Error 1
Wheel stuck or hanging
info
One or both wheels are lifted off the ground, or the robot is stuck against an obstacle.
Fix: Move the robot to an open, flat area and restart cleaning.
iRobot Roomba
Classic models (600 / 700 / 800 / 900 series) official source
iRobot official error message charts for the 600–900 series, cross-checked against independently published Portuguese/Spanish translations of the same codes.
Error 2
Main brushes can't turn
warning
Hair, string or debris is wrapped around the main brush.
Fix: Remove the main brush and clear anything wrapped around it, then reseat it.
Error 5
Side wheel(s) can't turn
warning
Debris is stuck in a wheel well, or the wheel assembly is jammed.
Fix: Turn the robot over and clear debris from around both wheel wells.
Error 6
Cliff sensor problem
info
A cliff sensor is dirty or the robot is near a ledge/stairs/dark reflective floor.
Fix: Wipe the cliff sensors on the underside with a dry cloth and move the robot away from ledges.
Error 7
Wheel can't turn (600 series)
warning
Wheel obstructed by debris or hair.
Fix: Clean around the wheel and drop-sensor area, then restart.
Error 8
Vacuum motor struggling
warning
The vacuum motor is drawing too much current, usually from a clogged bin or filter.
Fix: Empty the bin and clean or replace the filter.
Error 9
Bumper stuck
info
The front bumper is pressed in and not releasing, often from debris behind it.
Fix: Gently tap the bumper on all sides to free it and clear any debris underneath.
Error 10
Wheel problem - robot may circle
warning
One drive wheel isn't extending fully.
Fix: Remove the wheel module if possible and clear debris; otherwise contact support.
Error 11
Insufficient airflow
info
Filter or bin path is clogged, restricting suction.
Fix: Remove and clean the bin, filter and the extractor/brush area.
Error 14
Bin not detected
info
The bin isn't seated correctly or its contact points are dirty.
Fix: Remove the bin, wipe the metal contacts, and reseat it firmly.
Error 15
Internal error (usually self-resolves)
info
A transient software/hardware fault.
Fix: Restart the robot. If it repeats, factory-reset via the app.
Error 16
Tilted at start
info
The robot was picked up or started on an uneven/soft surface.
Fix: Place it on a flat hard floor and restart.
Error 17
Navigation problem - robot got lost
info
Mapping sensors lost track of position, often in a dark or reflective room.
Fix: Increase lighting if possible and restart the cleaning job.
Error 18
Docking problem
info
Robot could not see or align with the dock's infrared signal.
Fix: Clean the dock's contacts and IR window, make sure nothing blocks the space in front of it.
Error 19
Cliff sensor triggered near the dock
info
A cliff sensor picks up a ledge or drop right by the dock's launch point.
Fix: Clean the cliff sensors and check the floor in front of the dock for reflective or dark strips.
Error 21
Internal communication error
warning
A circuit board communication fault.
Fix: Restart the robot; if persistent, contact iRobot support - this is a hardware-level fault.
Error 22
Robot stuck
info
Physically wedged under furniture or against an object.
Fix: Free the robot and restart in a more open area, or set a keep-out zone in the app.
Error 23
Battery not communicating
warning
Poor connection between the battery and main board, or a failing battery.
Fix: Reseat the battery if removable; if the fault persists the battery likely needs replacing.
CHG 1
Battery not detected
warning
Battery disconnected or failed.
Fix: Check the battery is seated; if not user-replaceable, contact support.
CHG 3
Charging system fault
warning
Fault in the dock or the robot's charging circuit.
Fix: Try a different outlet for the dock; if it persists, the dock or charging circuit needs service.
CHG 5
No charging current
warning
The robot isn't receiving current from the dock's contacts.
Fix: Clean both the robot's and the dock's charging contacts with a dry cloth.
CHG 8
Battery communication fault
warning
The battery can't report its status to the robot.
Fix: Usually indicates the battery needs replacement.
Newer models (i Series, j Series & Roomba Combo) official source
iRobot's official Roomba j Series and Roomba Combo 10 Max error chart (homesupport.irobot.com/s/article/31103) - the same numbers mean different things than on the classic-model chart above, so don't mix them up.
Error 1
Left wheel hanging or stuck
info
The left wheel is hanging down or the robot is physically stuck.
Fix: Place the robot on a flat surface and press the button to restart.
Error 2
Multi-surface rubber brushes can't spin
warning
Hair or debris is wrapped around the rubber brushes.
Fix: Clear the brushes, then press the button.
Error 3
Right wheel hanging or stuck
info
The right wheel is hanging down or the robot is physically stuck.
Fix: Place the robot on a flat surface and press the button to restart.
Error 4
Left wheel jammed
warning
The left wheel has stalled - it's physically jammed.
Fix: Clear the wheels, then press the button.
Error 5
Right wheel jammed
warning
The right wheel has stalled - it's physically jammed.
Fix: Clear the wheels, then press the button.
Error 6
Constant cliff detected
info
Cliff sensors are picking up a drop-off continuously, or are dirty.
Fix: Move to a new area, check the cliff sensors are clear of debris, then press the button.
Error 7
Side wheels can't turn
warning
The robot was started on an uneven surface or is stuck on an obstacle.
Fix: Check the app for guidance; free the robot and restart on flat ground.
Error 8
Poor suction
warning
The vacuum is not generating enough suction, usually from a clog.
Fix: Check the app for guidance; clear the bin, filter and airway of any clog.
Error 9
Constant bump detected
info
The bumper is jammed with debris or has been knocked loose.
Fix: Tap the bumper to free it, then press the button.
Error 10
Right wheel can't sense the ground
warning
The right wheel is on the ground but the robot can't detect it.
Fix: Check the app for guidance.
Error 11
Vacuum motor not activating
warning
The vacuum motor is failing to turn on.
Fix: Check the app for guidance; if it repeats, the motor likely needs service.
Error 12
Cliff sensors triggered
info
Cliff sensors detected a drop-off.
Fix: Move to a new area, then press the button.
Error 13
Both wheels on uneven ground
info
The robot is sitting on an uneven surface.
Fix: Place on a flat surface, then press the button.
Error 14
Bin not present
info
The dust bin is missing, or its filter/detect switch isn't seated right.
Fix: Reinstall the bin and make sure the filter is installed, then press the button.
Error 15
Internal board error
warning
An internal circuit board fault.
Fix: Restart the robot; if it repeats, contact iRobot support.
Error 16
Bumped at start
info
The robot detected a bump right as it started, possibly a dislodged bumper.
Fix: Move to a flat surface, then press the button.
Error 17
Lost while cleaning
info
The robot entered an unmapped area and can't find its way back to the dock.
Fix: Check the app for guidance; you may need to manually return it to the dock.
Error 18
Couldn't dock after finishing
info
Cleaning finished but the robot couldn't dock itself.
Fix: Place the robot on the dock manually to charge.
Error 19
Failed to undock
info
The robot bumped something while trying to leave the dock.
Fix: Clear obstacles near the dock, then press the button.
Error 21
Lost communication with mobility board
warning
An internal communication fault with the board controlling movement.
Fix: Check the app for guidance; this is usually a hardware-level fault.
Error 22
Environment issue
info
Something about the current spot is confusing the robot's sensors.
Fix: Move to a new area, then press the button.
Error 23
Battery authentication failure
warning
The installed battery isn't being recognized as a genuine iRobot battery.
Fix: Make sure the battery is an authentic iRobot battery.
Error 24
Environment issue (flat surface)
info
The robot's surroundings are interfering with normal operation.
Fix: Place on a flat surface, then press the button.
Error 25
Internal board error
warning
An internal circuit board fault.
Fix: Check the app for guidance.
Error 26
Vacuum stall - possible filter clog
warning
The vacuum motor stalled, most likely from a clogged filter.
Fix: Check the app for guidance; clean or replace the filter.
Error 27
Vacuum motor over-temperature
warning
The vacuum motor overheated, from a clogged filter or bad impeller.
Fix: Check the app for guidance; clear the filter and let the robot cool down.
Error 29
Software upgrade error
warning
An error occurred while upgrading the robot's firmware.
Fix: Check the app for guidance and retry the update.
Error 30
Vacuum failed to start
warning
The vacuum motor failed to start a cleaning job.
Fix: Check the app for guidance.
Error 32
Smart map version mismatch
info
The map stored on the robot doesn't match the one saved in the app.
Fix: Reboot the robot to resync the map.
Error 33
Path blocked on Smart Map
info
The robot can't clean the path it planned - something may be blocking it.
Fix: Move to a new area, then press the button.
Error 34
Internal communication error
warning
An internal communications fault between components.
Fix: Check the app for guidance.
Error 36
Bin-full sensor not cleared
info
The bin-full sensor wasn't reset after debris was evacuated (auto-empty dock models).
Fix: Empty the bin manually to clear the sensor.
Error 41
Mission timed out
info
The cleaning mission didn't finish before timing out.
Fix: Press the button to restart the mission.
Error 42
Failed to re-localize
info
The robot lost track of where it was mid-clean and couldn't recover its position.
Fix: Check the app for guidance and restart the cleaning job.
Error 43
Started inside the dock's keep-out zone
info
The robot was started too close to the dock's no-go zone.
Fix: Move the robot away from the dock before starting.
Error 46
Ended mission on low battery, not docked
info
The robot ran out of battery before it could return to the dock.
Fix: Manually place the robot on the dock to charge.
Error 47
Invalid robot calibration
warning
The robot's internal calibration is invalid.
Fix: Reboot the robot.
Error 48
Calibration / path issue
warning
Invalid calibration is affecting the robot's planned path.
Fix: Reboot the robot.
Error 66
Memory limit reached
warning
The robot's onboard memory (usually map data) is full.
Fix: Check the app for guidance; you may need to delete an old map.
Error 68
Camera failed during cleaning
warning
The onboard camera used for navigation failed mid-job.
Fix: Check the app for guidance.
Error 74
Area cleaning limit reached
info
The robot hit its maximum area-per-mission limit.
Fix: This is expected behavior on very large spaces, not a fault.
Error 75
Stuck around obstacles, no progress
info
The robot keeps bumping the same obstacles without making progress.
Fix: Clear the obstacles or move the robot to open floor.
Error 76
Internal communication error
warning
An internal communications fault between components.
Fix: Check the app for guidance.
Error 88
Back-up refused
warning
The robot determined it can't safely back up from its current position.
Fix: Manually move the robot away from the obstacle.
Error 89
Mission runtime too long
info
The robot has been running a single mission for an unusually long time.
Fix: Press the button to end and restart the mission.
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