Well that all seemed to work out pretty well. Didn't trip (I think), plenty of hot water. If it trips again in the near future I'll call up the landlord, but otherwise all's good. Many thanks.
Thanks very much. No fear of me doing any replacing myself; that's what the landlord is for! I'm always happy to take the simple steps and the simple measurements, though. If it doesn't cut out again and all seems well, might write "cutout" next to the little rectangle with a chinagraph pen for...
Gave it a gently pushing with the thin, flat-headed screwdriver. A very noticeable click, and I believe it has moved back a little. Still visible as a little red rectangle. So maybe roundabout economy seven switching on time, it'll pop out again (or just work).
Addendum: First multimeter I...
At risk of being thick, because I really don't want to screw anything up, is the consensus that "I should try pushing in the red rectangle marked 'safety' and, if the failure persists, get the professionals in?" Or is it "the cutout is that red rectangle, but don't touch it; just get the...
Let's take a look at the only thing in the flat that looks like a box of breakers...
Good skills. There are two in there marked B16, one in a bank of breakers marked with various household supplies in various loactions, clearly marked "Immersion". It's ON. There is another small set of three...
I've got a water heater of model Premier Plus Unvented Model Number PP210E.
It has, as far as I can tell, two heating elements. One near the bottom, meant to be run from the economy 7 overnight electricity (which has spent the last decade turned on), and one near the top that runs from 24 hour...