Biasi Combi Boiler not working, help!?

Hi I wonder if some kind fellow could help me with a problem I have with my boiler

Firstly appologies as I am a boier noob and have no idea about any terminoligy etc

I have a biasi Combi Riva boiler, last night we noticed the flat was a bit cold, checked the boiler and it was making a whiring noise but the red light was on ( I am led to believe this is a lockout light? whatever that means :0) I have no heating or hot water currently.

I have tried the following

Turning it off and on again (well I do work in IT after all), after doing this the whiring noise comes on and the red light kicks displays again there are a couple of clicks, but the boiler doesnt fire up.

Pressing the red light button, seems to be a faint click noise, however nothing else happens.

Pressure was a little under "1" I topped this up to "1" and tried the faithfull off/on test but alas no joy

I get the impression I am going to need to call a proffesional out to fix this but wondered if there is anything that I could do myself?

Any help would be greatly appreciated

Cheers