It's an ariston boiler but there isn't any model number on it. However it looks like this...
http://www.upperplumbers.co.uk/images/Text/Maintenance/Boilers/Ariston_MicroGenus_II_28_MFFI_mechanical_clock.jpg
I thought the faulty mechanical timer on my boiler would have been an easy thing to replace with a digital one as the device does exactly the same thing, however when putting getting the new digital device there are a few problems. Can anybody help?!
This is the old timer. As you can see...