Error 1
Distance/surface sensor blocked
info
The laser distance sensor or surface-tracking sensor is covered or dirty.
Fix: Wipe the sensor window on the front/top of the robot.
Xiaomi / Mijia
Mijia / Mi Robot Vacuum (general models) compiled
Compiled from device-specific code listings aggregated across multiple Mijia/Mi Robot Vacuum models; Error 2's meaning genuinely varies by model generation, noted below.
Error 2
Varies by model: collision sensor needs cleaning, or shock-absorber issue
info
On most models this is the bumper's collision sensor; on the 1S it points to the shock absorber assembly.
Fix: Wipe the bumper's contact sensor; if the error repeats after cleaning, check your exact model's manual.
Error 4
Hover/cliff sensors need cleaning
info
Dust on the underside cliff sensors.
Fix: Wipe the sensors on the base of the robot.
Error 5
Main brush tangled
warning
Hair or fishing-line-like fibers wrapped around the main brush bearing.
Fix: Remove the main brush and cut away wrapped hair/fiber.
Error 6
Side brush needs cleaning
info
Debris caught in the side brush.
Fix: Remove and clean the side brush.
Error 7
Main wheels stuck
warning
Debris blocking a drive wheel.
Fix: Clear debris from the wheel area.
Error 12
Battery level too low
info
Battery drained below the safe operating threshold.
Fix: Return to the dock to recharge fully before the next run.
Error 13
Charging fault
warning
Poor contact with the dock or a dock power issue.
Fix: Clean both sets of charging contacts and check the dock's power adapter.
Error 14
Battery fault
warning
Battery is degraded or not communicating correctly.
Fix: If charging issues persist after cleaning contacts, the battery may need replacement.
Mi Robot Vacuum-Mop Essential official source
Official Xiaomi global support article (mi.com/global/support/faq/details/KA-07589) - this model uses a completely different Error 01-12 numbering from the general Mijia list above, so don't mix them up.
Error 01
Left wheel error
warning
Too much load on the left wheel, or it can't turn.
Fix: Check whether the left wheel is stuck and clear any obstruction.
Error 02
Right wheel error
warning
Too much load on the right wheel, or it can't turn.
Fix: Check whether the right wheel is stuck and clear any obstruction.
Error 03
Cliff sensor error
info
The cliff sensor isn't functioning properly, often dirty or obstructed.
Fix: Check whether the sensor is dirty or obstructed and clean it.
Error 04
Low battery
info
The robot is running at a low battery level.
Fix: Place the robot onto the charging dock to recharge.
Error 05
Bumper error
info
The bumper isn't functioning properly and may be jammed.
Fix: Check to make sure the bumper isn't stuck.
Error 06
Brush error
warning
Too much load on the main brush, or it can't turn.
Fix: Check whether the brush is stuck and clear any tangled debris.
Error 07
Side brush error
warning
Too much load on the side brush, or it can't turn.
Fix: Check whether the side brush is stuck and clear any tangled debris.
Error 08
Fan error
warning
The fan can't rotate or is drawing excessive current.
Fix: Restart the robot; if the error persists, contact after-sales service.
Error 09
Dust compartment / water tank not detected
info
The 2-in-1 dust compartment with water tank isn't detected.
Fix: Check whether it's installed correctly.
Error 10
Charging error
warning
The robot isn't making good contact with the charging dock.
Fix: Make sure the robot is well connected to the charging dock.
Error 11
Insufficient water
info
The water tank doesn't have enough water for mopping.
Fix: Refill the water tank.
Error 12
Robot is off the ground
info
The robot has been lifted or is on an uneven surface.
Fix: Move the robot to a level surface and start again.
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