shower valve

We have a combi-fed Mira Excel shower, which has developed a temperature problem. Used to run hot, but now only runs a touch above luke warm. Here are the symptoms- Turning the temperature control on the shower fully to the left (hot) results in a brief moment of full hot water before then...

Recently had a bathroom re-fit and ended up with the shower not working properly. The original shower was fitted 20+ years ago. This has been put back. Before re-fit, there was what looked like speaker cable running from the shower valve to a pump (pump by hot water tank in airing cupboard). It...

Hi I am trying to locate a spare of this item in the picture. It's a shower valve I think it's called but can't find anything like it. It has no part number or model written on it. Thanks all