Hi Kristin,
Thanks for replying.
I checked the hose first, as it's quite long and easy to trap or kink, but it's fine. Also, I was using the torch with no problems for about 30 minutes beforehand.
As to the propane psi - to my chagrin, I'm not sure. It's got the presumably standard regulator, identical to this one:
http://www.tuffnellglass.com/content..._head_kit.html
which came with it and is rated up to 4 BAR. Trouble is, everything seems to be rated in BAR in the UK, not PSI! I'm also not totally sure how open it should be. I just crack it enough to get the propane flowing. Is that wrong?
I detached the oxy hose from the torch and checked the output, which seems fine if not quite even - the flowmeter ball does go up and down a bit, but I'm not sure if that's normal?
I've hunted the web, but can't find an exactly similar problem. Neither can I find a manual for the Companion 590i oxycon - the 590, yes, but the configuration is different. I want to get inside it and check there's nothing amiss, but although there's a long hinge down the back, I can't find a way to open it!
I normally manage to figure stuff out, but this is proving difficult.
So sorry for all the questions - it's a bit of a learning curve!