Yikes! Yours or someone elses?
Got the 8.5 liter model today. Tried it with water and it came up to pressure fine. No problems. The only minus that I can see with this model it that it doesn’t come up to pressure as fast as my three Kuhn ricon pressure cookers. They the top of the line but a lot more expensive than this. This is a good solid model.
I bought the 6.4 quart. It’s a piece of crap. It worked 2 times and now mysteriously won’t hold any pressure at all. I checked everything in the manual and i checked everything online. Nothing. No help whatsoever.
This is just an expensive sauce pan.
It has a Limited Lifetime Warranty from Fissler. Have you contacted them?