Howjado.
Our son works for British Gas and they are trained to work on all boilers on the market, they have a resource centre which gives them a print-out to any model on the market.
I’m not suggesting you sign up to BG. I’m just saying a competent engineer should be able to work on any boiler.
The Putney Pusher has been arrested……9 years on!
Disappearing Contributors part 3



