It’s not a plug in hob, it’s a 7.2kw wired into a 32A circuit, so can’t be a power issue.
I’m now looking at pans, although ours are induction, they are only cheap, and having spent half the morning boiling pans of water, I’ve found the Tefal wok is much faster, and has a different base to the Salter saucepans, which are not all magnetic, having a non-magnetic ring round the outside and a non-magnetic circle in the centre. The Tefal is entirely magnetic.
I’m starting with ordering a Procook Gourmet non-stick…