This probably a stupid question but did you leave it long enough to come to pressure? depending on what you are cooking and how cold the ingredients are it can take up to 15 minutes. If I have something with a lot of cold ingredients and haven't browned in it first to warm the bowl it seems to take forever to come to pressure.
What are you doing Maddy going to wait or cancell and reorder?
Well my 5 in 1 came, really excited now I am frustrated, it has taken me all morning to try and get it to work, couple phone calls to the help line and still the pressure cooker won't work, I have done everything it says the timer just won't start, they are now going to send me another lid as they think it could be that not getting to pressure grrrrr has anyone else had this problem? The only thing letting off steam is me LOL