It started yesterday but it was tripping them immediately yesterday. This morning it tripped them within about a minute. Now it's taking a few minutes.
Any ideas what could be causing it or any quick fixes I could attempt before I have to call out a repair man? I initially though it could be that someone spilled some water down the back of the oven onto the socket or the fuse but I've pulled it out and it's dry and also plugged it into a different socket. I also thought it could be the fuse but surely if the fuse had gone it would trip immediately like it did today?
You also cannot switch it on with a lighter. It just blows the lighter out, we've tried.