I've picked up a GW Instek PSP-405 bench power supply. It works great, except that when I turn it on its side (my bench is very small so sometimes I need to save space) I hear a "click" and the display goes blank and it ceases to have any output.
I've taken the lid off and had a good look inside but can't see anything obviously wrong (no loose wires or ICs coming out of their sockets), however, I don't really know what I'm looking for.
Is this even a fault? If so, any hints on fixing it?
Photos attached.