Hi, We had our oil fired central heating boiler serviced a few months ago and the engineer said we have a problem with the combination/PRV/expansion vessel, he didn't know which, and said he isn't qualified to carry out the work to discover and remedy the problem. I have approached 2 engineers and both have let me down by not getting back to me when I had spoken to them and sent the information. Are you and would you be able to sort out the problem? We are in Chewton Keynsham.
Thank you for your time.