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With the mixer shower I'v recently started getting only very hot water or cold water. Nothing in between. This only seems to affect the shower - the taps work fine as do the radiators. The boiler is a Worcester 240 Combi. Any suggestions?

I have a combi boiler and recently the boiler only kicks in when i turn the thermostat on the shower to 45 ie burning hot. It just runs cold otherwise. I've increased the pressure bar but still no luck. With regard to normal hot water there's no problem, it just seems to affect the shower. Any...

replaced the diaphragm (it was distressed and contained a couple of holes) and now I'm getting hot water! Thanks for all the help However a couple of small things. One of the pipes leading into the diverter valve is leaking. Very very slowly. About one drip every ten mins. I did replace the...

Actually I've read someone that I will have to drain the whole system to do this. Is this true? Your method sounds a whole lot easier!

Many thanks. Will try that today!

Am having quite common problems with the Worcester 240 - CH is fine but there is no hot water unless the CH is also switched on and then it's tepid. From what i can gather there is a good chance it's the diverter valve/diaphragm. How easy are these to fit yourself (i don't wish to blow the...