WMF 5000 S+ - Restart Acknowledgement and Machine Startup; Fan System Overview; Power Stage Fan Details

Service 31
3 - The Menu button can be pressed to acknowledge the display message,
and the machine will then restart.
2.10 Fan system
The WMF 5000 S+ requires 2 separate fans
Power stage fan:
A powerful fan (1.68 W) ensures a low-temperature environment for the
stage.
The air is drawn in through the rear cover into the interior of the machine and guided to the
power stage. From there, the air is discharged out the front via the spout.
At the same time, steam is prevented from being drawn in through the spout to the power
stage.