whats wrong with my vaillant boiler??
i have a vaillant combi boiler that has no electric to it, the fuse in the switch is ok, but inside the boiler there are a further two small glass fuses. one was blown so i replaced it and switched the boiler on. The control pannel lit up for about 15 seconds and when the boiler tried to fire up the fuse blue agian. any ideas....
Matt, August 2009