Hi tom
The whole forum thing works on others answering questions, giving advise and some banter. To register as a gas safe member , you need to get your postings up to 10 ( you have two)
You could introduce yourself on one, then maybe look at others posts and give your opinions.
Once you have reached 10 ( private message a moderator REDSAW) with your GSR details and your in. Won't take long!
Than try and put a detailed post about the boiler you are having problems with. There are plenty on here with massive experience and I'm sure you will have an answer.
After that log on every now and then, to help others with your experience, and to learn a bit.
Regards
Chalked