I have had another look at this today and I have now had the machine go back to not booting.
Is this a common issue or is there something else I need to look at. I didn’t try flicking it on and off again as I wanted to check if something else needs doing to hold the attract mode.
I had also pushed on the display fuse (without any power) earlier and the display is now working again. Think I have a cold solder joint there so will sort that later. The display is showing the same error code as before.
As a next step what do I need to check if it isn’t holding the attract mode or do I just get it back in to attract mode and go from there.
Thank you to everyone for your advice.