DavecUK The green disk part was in good condition, just shows an indent from where it sits against the flange at the boiler end. The whole thing cleaned up well in some vinegar water from the light scale that was on it. I will order some of the grease you mention.
The steam safety valve is the source of the steam going into the water tank. As soon as everything made the noises indicating the steam boiler had ‘sealed’ at pressure, steam started to come out the hose attached to it when it was removed from the four way connector - does this mean it’s leaking and is safe to just replace with no further diagnosis to make sure the boiler isn’t building too much pressure?
How do you get the plastic hose out of the elbow per the brew boiler? I can see no way to get the elbow off while the hose is connected as it won’t have enough stretch and flex to let the elbow turn. I have no idea how the hose comes out of the elbow, we had a look this evening but couldn’t figure it out between the husband and I.
Any idea of a best place to buy the parts? Bella Barista has everything labelled Mara X or Bianca they really don’t have much for Elizabeth available. Same with coffee spares direct, all for PL62 and I understand mine to be a PL92?