gamgra wrote:Remove the cover with the glass, after removing the cover and glass see if you can move the needle, if the needle moves freely, it may have come loose from the spindle.
Sometimes this happens, all you need to do is, push the needle (carefully)back onto the tiny spindle.
Did you have any luck with this? I have a similar gauge and it reads 0.2 bar at rest, but then seems to work correctly, just reading what I assume is 0.2 bar high throughout the range. Can I just pull off the needle and reseat it, or even just carefully twist it? Ie is it a simple 'press fit'?
As the machine has no vacuum breaker, I assume its been twisted on the spindle as some negative pressure has occurred as the machine has cooled down.

Cheers, Chris