The magnet is missing from the suction nozzle of the central spout.
Switch the coffee machine off.
Pull the stainless steel cover off the central spout.
Remove the dispensing unit toward the front.
Check for a magnet inside the suction nozzle; see figure.
If a magnet has been installed, reposition it correctly inside the suction nozzle.
Reinstall the dispensing unit onto the central spout.
Reinstall the stainless steel cover.
Switch the coffee machine on again.
If the fault persists, please contact us or book a repair appointment online.