A couple of days ago the temp of the DHW in my Perfroma 28 suddenly started to cool down (the radiators are fine) when turned on full. I also noticed that the water pressure on the hot side seems to have increased. Presmably ( I'm guessing) that the water is flowing through the boiler too quickly to heat correctly. Is this likely to be a problem with the boiler or an external water company problem.Any advice would be gratefully recieved.
Oh yes I replaced the diaphragm in the diverter valve on the advice of the the local plumbing centre but it didn't change anything.
Oh yes I replaced the diaphragm in the diverter valve on the advice of the the local plumbing centre but it didn't change anything.