Thank you both for replying. My mains tripped the same day the boiler stopped working but I wasn't sure it was at the same time. Although I mentioned a plug in my post it was in fact an appliance socket. I tested a new fuse before putting it the socket and the old one and both showed up as...
Boiler packed up 3 days ago so no CH or HW. No lights flashing on the front which would be expected if the unit was working or had a fault. Pressure okay. Plug light indicated power to the boiler. Can't find anything which tells me what the problem might be when no front lights showing...