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Danv44444
Hi Guys, I have a customer with the above boiler and the hot water only works on pre heat. I think the water is going down the flow as the pipe gets red hot but the hot tap doesn't get very hot. When you run the hot tap you can also hear lots of air gurgling inside the boiler. I'm thinking the diaphragm has gone on the small diverter valve. Do you think that sounds about right? Are they diaphragms easy to change?
