Worcester 24DCI RSF Hot water fault

[Euan26]

Hi Guys N Gals
I have looked at previous threads and think I already know the source of my problem but would appreciate it if someone would confirm just to put my mind at ease.

When using the shower after a few minutes the water goes cold and the Burner On light goes out. If you keep the shower running it will relight and again provide hot water for a few minutes this will continue for as long as you want. From previous posts I think this will prove to be a diaphragm fault.

I would appreciate any comments you may have.

Thanks Euan26

 

[didgeradoo4719]

Hi! I have a Worcester 28cdi rsf combination boiler that has the same fault as yours has. I have replaced the diaphram in the diverter valve today, but it has made no difference. The hot water is ok when the CH is on, so I don't understand it. I am waiting for replies on the forum to see what else can be wrong. Take a look at this on: www.newtonnet.co.uk/house/boiler It is very interesting and may help you decide what to do.
Good luck!
Les

 

[bengasman]

unlikely to be diaphragm, sounds more like clogged up plate exchanger.
if it is, powerflush is what you want.

 

[hav it]

it does sound like a plate hx fault.