Mira electric shower problem

ThisIsWeird

The insides are not like that diagram, then? A different model, I guess.
In most, the microswitches are visible - you just need to know where to look. But yours might have another cover over this part, I dunno?

Not that it matters - it's not for you to fix if it's this issue. 

MACKEM99

Should the wee button be in the toilet rather than the shower?😃

danrv

GDB2222 said:

danrv said:

Maybe thermal cut out switch?
Old post here with similar problem.
https://forums.moneysavingexpert.com/discussion/3523585/mira-sport-electric-shower-runnin-cold

It’s strange to be happening on a second unit, though.

Yes, it is.
The TCO is on top of the water tank (1 on the diagram shown earlier). A quick check with a multimeter would confirm if that's the problem. Turn off power first.
Article here:
https://www.showerdoc.com/mira-go-shower-spares/question/mira-go-not-heating-water-119880