La pavoni slow water flow

Hi if there is Vapor coming from the grouphead when the lever is down then I would guess there is a problem with the seals around the piston and possibly elsewhere. Here is a link to a goos site that looks at repairing La Pavoni lever machines. Good luck.
DIY

dr pavoni

\\this might be caused by a worn piston seal. see here how to replace seals.
dr pavoni

hi
you probably have your piston rod is little bit loose from piston so it does not raise piston high enough so group head must be disassemble and reconnect the rod with loctite
regards
Guy

Sounds like it might need a service , some great advice and pics at the site link below

Again sounds like the seals are damaged and or need some lubrication and a service link below to a good site
dr pavoni

Hi your grind is to course and or your tamp is to loose. Even with the right grind and tamp water will filter down through the puck eventually.

all the best

Run some WHITE vinegar through it, followed by plain water a few times. The heating system gets a buildup in it and requires cleaning from time to time.

Hi there, i am Mr La Pavoni and am based in Glasgow, Scotland. I service and repair these machines all day every day and basically it could be a couple of different things. If it is pre 2000 then it could either be the piston gaskets or the piston shaft has come slightly unscrewed from the piston head. If it is post 2000 then it could be any of the above but also in these models there is an additional sleeve inside the group head which may be cracked or the seal on this part may need replacing. It could even just be a tiny bit of debris on one of the piston gaskets. If you have removed the shower plate and gasket and then taken out the piston assembley then you should really replace these gaskets anyway. You can purchase the parts on my website www.theespressoshop.co.uk which are all individually priced and every part is available for the lever machines. If you require any further assistance then please do not hesitate to get in touch at [email protected]

All the best

Mr La Pavoni

Could be casued by one of the following.

Bad spring in pressure chamber.

Lime scale build up in check valves or other water passages.

http://www.lapavoni.ca/4.htm