Worcester 24 CDi Hot Water Failure

[homesweethome]

Hi,
Just wondering if anyone could give me some advice on my problem to ensure I am forearmed with information.

The Worceseter 24 CDi boiler is approximately 9 years old and has been working fine up until yesterday. There is no problem with the CH but for some reason the HW has now failed. The HW stopped kicking in at the preferred temperature setting, so I turned it up to full and it duly kicked in. This only worked for about 10 minutes then it failed completely. The hot water indicator no longer lights up when the tap is turned on and the water is stone cold.

Any advice gratefully received.

 

[fitz1]

diaphram on diverter valve (right at the back) whoooooooo what a job.

 

[ChrisR]

Suggest that you change the whole valve, at that age.

 

[gentess1]

I have had exactly the same problem, but I have since changed ( by corgiman for 180 wraps ) and now all I get is warm water, no good to wash up un, It gets slightly warmer if I turn the central heating on !!!!! Whats the crack, any suggestions, Corgiman says boiler is shot, so why is heating working ?

 

[homesweethome]

Many thanks for all your replies. I've got a professional plumber coming out tomorrow to sort it. I just needed a bit of info in case he/she started splurting out problems with different components.

Cheers!

 

[kevplumb]

I have had exactly the same problem, but I have since changed ( by corgiman for 180 wraps ) and now all I get is warm water, no good to wash up un, It gets slightly warmer if I turn the central heating on !!!!! Whats the crack, any suggestions, Corgiman says boiler is shot, so why is heating working ?

heat exchanger is prob scaled

 

[nickso]

diaphragm on a 24/28 cdi isnt that bad and you wont tneed to take out the entire diverter either....the worst bit is after putting it back together trying to sort the other leaks which appear from nowhere

 

[scatmanjohn]

I have had exactly the same problem, but I have since changed ( by corgiman for 180 wraps ) and now all I get is warm water, no good to wash up un, It gets slightly warmer if I turn the central heating on !!!!! Whats the crack, any suggestions, Corgiman says boiler is shot, so why is heating working ?

corgiman....you should be ashamed of yourself.

 

[gentess1]

If it is scaled, how do I tell, is it repairable, coz it sounds expensive

 

[kevplumb]

If it is scaled, how do I tell

you don't thats what you pay us for

yes it is fixable

 

[ChrisR]

SOrt the diverter/diaphragm first.
A boiler bloke would be able to diagnose pretty quickly.
If the plate heat exchanger is scaled, I remove and clean them for 80 -£100.