no you need to flick the yellow tab on the pipework to stop the water flowing out of it, that is the drain for removing the water before you leave the site
As well is two words!
How does a sage know everything about everything? or does he? or does he just think he does?
Remember, if you buy something you bought it, not brought it.
normally it would just cause it to trip out, and then you wait till it cools and then start again adding the water, try flicking the drain tap a few times, it might have got dirt stuck in it and holding it open/no seating right