Biasi 24s Combi no hot water

Hi Folks,

I have a Biasi Combi boiler model 24s, that I have purchased 7 years ago, and it was doing a very good job so far. I use it for both central heating and hot water. Yesterday hot water finished… I restarted the boiler- no luck. Does anyone know what may be the issue?

Best Regards


Hi Robert

Your issue can be solved by replacing either diaphragm split in the diverter valve (simply exchange the whole diverter valve) or/and DWH temperature sensor . I would probably replace both- just to stay on the safe side. Let us know if it worked