Hi after reading some articles on here about no hot water through my worcester 24cdi boiler and reading worcesters fault finding info on their website i located what i think the problem is, i.e. that the plunger on the water diverter valve, though extending to some degree when the hot water tap is open it isnt going far enough to press the microswitch to activate the burners. I have simply stuck on some additional depth to the plunger, that now presses the microswith and the boiler fires up as normal.

My question is though my water works fine now should I be replacing the valve anyway as the fact that it no longer depressed the switch is a sign that it is knackerd. Any feedback would be appreciated.

Thanks

Mick, May 2007

tap light is flashing and will not ignite boiler.also tank low no water water I think.

cheers

steve, December 2013

my boiler has a flashin light next to the tap simbol and answers for me please the boiler is actually on but there is no hot water or heating through the radiator

nick, March 2008

i have a worcester 24cdi and i turn it on and it crecks and make a sound and cuts out and the pressure is high can you help

billy, December 2007

Cheers mr gas, very helpful, I'll see how long it lasts as is and start saving for a bosch worcester call out, £217 is a lot of money!

Mick, May 2007

it is the diaphram in the valve that is on its way out. it will become less and less reliable as is becomes less able to push the plunger out.It needs changing soon and on the cdi range is not an easy job to do unless you are familiar with the boiler as you have to remove the filling loop assembly, domestic heat exchanger and various other parts to access thediverter valve for removal and diaphram replacement.Many of the hydrolic connections are o ring seals that can cause leaks as well if disturbed.hope this is helpful

mrgas, May 2007