I wonder if anyone can help suggest what/where the problem might be? I get luke warm water from my thermostatic mixer bar shower in the top floor bathroom, but the sink next to it I have no problems with, water is hot within a minute. I (had help and watched!) followed instructions to readjust the settings and clear out the valve/cartridge which did nothing. It then emerged that the water from the hot water source was luke warm, but the pressure is fine. I don't know what to do about this, can anyone suggest what to look at?

Thanks

Rachel