I have a Biasi 28S which is about 6 years old at my flat in NW London.
It now has a constant and fairly loud whirring noise which continues when it is both on and off. It's not the fan as far as I can tell.
It does hold pressure at 1.5 Bar and heats the central heating and hot water OK.
Any suggestions?
It now has a constant and fairly loud whirring noise which continues when it is both on and off. It's not the fan as far as I can tell.
It does hold pressure at 1.5 Bar and heats the central heating and hot water OK.
Any suggestions?