follow instruction as to manual as you you need white key to insert under boiler in black slot under boiler and then slowely open gray knob slowely beside where you insert white key and fill pressure to 01.5 bar and close and remove key
k
April 2012
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix plumbing.