Just moved in here in Germany. I know that the blue dot is for someone to get in when they ring the doorbell. What are the other numbers for? Are they floor
Marine Panel | FERMAX
fermax citymax | eBay
KIT WAY 7” 1/L : Amazon.de: Baumarkt
Bedienungsanleitung Fermax Loft 3399 (Seite 1 von 7) (Englisch)