Questions about ecofort ecoQ DryAir 35L Energy Saver

My dehumidifier just won't start... When I plug it in, I hear the start tones and the flap opens, but then it closes again and no matter which button I press, nothing happens (apart from a single beep). Not even the display comes on. It's not a childproof lock, the tank is inserted correctly, it's on level ground... What am I missing?

Is it possible to connect a hose to this model to drain the water directly? And if so, where is this hose connection located? On the back?

Is it possible to set the appliance to operate only at certain times? Either with a built-in function, a connected socket or a timer (what happens when the appliance is plugged back in?).

Which tube, which can be found on galaxus, is compatible with this device?

I bought the Ecofort ecoQ DryAir 30L Energy Saver. Among other things, because of the statement "Automatic operation: Dehumidifier switches off automatically after reaching the desired humidity. If the humidity rises again, the dehumidifier switches on automatically". I am now slightly overwhelmed as to how to effectively set the dehumidifier so that it runs, for example, from 60% and not below. I already have a dehumidifier from another brand and with this one I only have to specify the humidity level at which the unit should run. If the humidity is below that, the unit automatically switches to standby mode. I would be grateful for any relevant information. Merci.

Ecofort energy saver: Contrary to the product description, it is very, very noisy!

What exactly does the "tumble dryer function" mean? I'm looking for an appliance with a heating function, but I can't filter by that here. Is that what it means?