mattwells wrote:It looks like the pressure gauge is working, it is just reading 12 bar too high - when I put in a blank basket it read the pressure ramp up and then topped out at what would have been (approximately) nine bar.
Weird. It needs a reset button

/mw
You can attempt to repair the gauge yourself:
1. remove the gauge from the machine.
2. pry the cover off the gauge. (the cover is pressfit onto the gauge from the front. A big screwdriver with a SMALL flat blade, pushed into the gap from the back, pushed in and pried outward, will loosen it. It is an art.)
3. pull straight up and remove the needle.
4. gently push the needle back on the center post with the needle right by the "zero" post.
5. put the cover back on.
6. put the gauge back in the machine
Yes, I have done that, to 2 gauges, in a way that is not noticeable unless you see the pry marks which are inside the machine when the gauge is mounted back in the machine.
But, yes, you have to be damn careful.
I have NO idea why it happens.