Yearly maintenance of a Wolf CWL 300 controlled ventilation unit (kontrollierte Wohnraumlüftung)

This is my yearly maintenance procedure for a controlled ventilation unit Wolf CWL 300.
Jährliche Wartungsarbeiten an einer Wolf CWL 300 Wohnraumlüftung.

[@elmarmammadov8349]

Fantastic content!

[@mrmo1980]

Thanks for the video.

[@giol.8220]

great,except better no spray/ lubricant for the bearing shaft.