The pressure in my combi boiler dropped to 0 which I have managed to get back up using the filling loop but I can't get the boiler to work. I have tried resetting it and it goes through the motions of starting up but then nothing happens. Any ideas what could be wrong?

Nicky, December 2008

my 2 year old combi boiler is showing no signs of life ... no hot water .. no heating.. no lights on the boiler ????

liz, January 2009

I'm no plumber but the following may help
http://www.tradeplumbing.co.uk/assets/images/IdealBoilers/isar_he_manual.pdf

Troubleshhoting is on last page ..

Steve, December 2008