Can anyone help. I have a Biasi boiler which had a knocking noise when it first started from cold. I added a water treatment to the system and 2 days later we have no hot water. As soon as the water starts to get luke warm the boiler locks out. I am guessing either the dhw thermostat or something to do with the diverter valve. Has anyone got any ideas?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.