Precision oven 2.0 won’t power on

This is a recent purchase. It worked fine for the first few weeks, now won’t power on. When I reconnect the mains I get “Anova” on the screen for 15 seconds, then blank. I have tried different outlets. Can you suggest any troubleshooting steps before I return it?

Before returning give support a call.

What number should I call? I’m in Europe.
Ross