Inconsistent behavior of the remote's power button

[AlexS]

Hello AlexS, try the following:
1. Batteries exchange.
2. Place the remote control next to the devialet and test the device (too far away)!
3. There are dust etc. in the remote control.

Here is the link for cleaning the remote control:
https://m.youtube.com/watch?v=hRwBMqYedZQ

It is worth a try

Thank you, K4680.
I'll keep this in mind. It'd strange if the remote required a batteries replacement or cleaning, since it's brand new. But I guess everything is possible.