I think it was about a glitch that I am also experiencing ...
How many years / months did your pump run as a failure-free device?
I have an old pump that is 12 years old and spinning. And reading various posts on the Internet, I have the impression that in these modern, energy-saving pumps, the weakest link is electronics, which, if it collapses after a few years, the pump is suitable for scrap, because an authorized service does not repair it.
Why is the EU not fighting for ecology and will not guarantee the option of replacing electronics with a new one. As you can see, ecology is empty words, because being ECO is promoted only when it is convenient, profitable for the promoter and specific interest groups.