Turn off device

Remove all brushes

Remove water tank

The battery compartment is already accessible after removing the brushes

Unscrew the front part holder to proceed with the teardown

Remove the front part holder

Unscrew the main cover

Turn upside-down and remove main cover

If you need to clean the water nozzles, unscrew the dust bin plate holder

Remove the dust bin plate holder

Clean the nozzles (for instance with a paper clip)

Blow in the tube to check that the nozzles are free