Grohe Sensia Arena User Manual page 62

1st Press: Rear washing nozzle extends
2nd Press: Front washing nozzle extends, after the rear washing nozzle has retracted
3rd Press: Nozzle shutter opens, after the front washing nozzle has retracted
4th Press: Nozzle shutter closes
5. Clean the nozzles.
6. Return the setting of the [AUTO FLUSH] and [AUTO OPEN/CLOSE].
NOTE:
Do not apply excessive force to the nozzles, as this may cause failure.
Do not pull or push the nozzles. The nozzle will not be retracted and failure may occur.
If you pull or push the nozzles by mistake, turn off the power of the toilet by pressing the power
button on the toilet, then turn on the power after 10 seconds.
Do not clean the nozzles with tooth burshes.
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