How to pressurise a Worcester Greenstar 4000 boiler and where to find the key.

after losing pressure I could not find a video explaining how to repressureize my boiler. I decided to do this video to help others so they do not have the struggle that I did and in this video you will also find out where to find the key to place in the bottom of the boiler.

[@allanbarclay5775]

yours is the most helpful video by far - all the videos show a blue valve , like you mine does not have this . The boiler is only a year old and the key is missing . Can only assume the installers stuck it in their pocket by mistake. I have a key on its way via a well known online retail site. Only wee observation I have is that my boiler doesnt seem to have the little white square box next to where the key goes in - so fingers crossed its a simple insert and twist to refill function !