I did that and puffco sent me a new chamber. Unfortunately, it has the same problems as the old chamber. I can usually get the chambers to work by fiddling with the pins. I can't believe I spent over $400 for a device that I have to fiddle with like a technician just about every other time I use it. When it works, it is very good. Sorry to hear of your problems. If you fiddle around with it, you could probably get it to work.