Issue with existing shower - unsure whether to replace or not

wiggly

So, I have a Triton Cara shower. It was fitted at least four (more likely six but I just can't remember) years ago when the existing shower died a death.

Since it was fitted it has always been a bit of a weak shower, even compared to the previous one.

Anyway, I'm about to have my bathroom re-done and one of the questions is what to do about the shower. I've done some reading and it seems that people rate the Cara as being a pretty alright shower, which we don't find at all. So I'm wondering if it's been installed properly, if there is something we can check?

This is what I was reading and no way would we say the same about the shower in our experience http://www.diy.com/nav/rooms/bathrooms/showers/electric_showers/Triton-Cara-Electric-Shower-White-9-5kw-10517828

In true MSE style I would prefer to not replace the shower tbh, especially as I would like to move in a couple of years, but it drives me insane. For more months than not in the year the coldest setting on hot is WAY too hot, and the hottest setting on the bottom (is it eco or medium?) just runs with so little pressure it's comical.

Is there something we or our plumber can do to make it better or is it just the wrong shower on our system? What information do I need to know if it is or not? How do I know what cable runs from the unit to the shower? How do I know if it's mains or gravity fed (I am assuming mains but would like to be sure).

All help very gratefully received

keystone

Remove the cover with the top dial on "High", remember it's original position, turn the temperature dial about a quarter turn so that when you put it back on, the temp is set cooler, keep doing this until the dial will not move any further than a medium hot temperature. The Cara has a thermostat cut out that should kill the water if the temperature is too high or the water pressure is too low. Forget the Eco setting, it never works properly anywhere to my knowledge.

You can do this yourself.

Cheers

macman

Electric showers should always be fed off the rising main. If in doubt follow the supply pipe back to source.
If it's been fed from your cold tank, then it's time to find a new plumber.

wiggly

Right it seems it is the 8.5kw one, when I read the label (useless OH )

Thanks for the hint, will give that a try. I could do without replacing it tbh. I'm also hoping that because we'll have to take it off the wall for the bathroom refit it will be refitted by a plumber I actually like who I trust so I'm hopeful it might be a bit better!