Recently my Biasi Riva stopped working and it was freezing cold so I needed one quickly, I finally found a plumber who quoted £260 which I agreed to only for him to cancel the night before.
I decided to tackle it myself as I was sure the pump had failed and nothing else. I found the part online for £75.99 (Ebay but new) and began the job videoing as I went. I fixed the boiler in my other flat (see my other videos) so was fairly confident on what I was doing and what do you know I fixed it 🙂
If you have any questions, please do not hesitate to post them and I will do my best to answer.