I take that back, it did work. I had been warned the system might take 10 mins to reset itself, but must have been too impatient. Tried it again an hour later and everything is working nicely by the looks of it. Time will tell, but that seems to have worked
Did you ever get an answer to your problem? I have the same problem with the same make and model. I spoke to a boiler engineer on the phone and he did indeed recommend blowing down the 2 pipes at the front of the unit to try and kick some life into the air pressure switch (not the fan I don't...