mplaczek

I'll keep this brief.

We have a four bedroom flat on one level and we have a Worcester combi boiler.

There are two problems and I wanted to get idea of what may be wrong or if anyone had any ideas of anything I could adjust/change to help remedy the problems. The boiler is located in the kitchen which is at the back of the flat.

Firstly, the radiators at the front of the flat do not get hot. They have thermostatic valves fully open, are bled etc... the hot water in the pipes does not seem to quite reach them... the pipes themselves get warmish, but close to hot?

Secondly, the temperature of the domestic hot water is great in the kitchen where the boiler is and for almost all of the day fantastic in the rest of the flat. But, if anyone wants to have a shower/bath late in the evening it seems to generally not get all that hot... the bathrooms are located at the front of the flat. I generally have a shower in the morning and the water temperature seems fine in the morning.

Any thoughts/suggestions would be appreciated

Thanks

Brendan Hughes

I suggest you post this in the DIY section

Mog is a Worcester expert

stilover

Move

Mog

The radiator problem depending on the size of your flat sounds like the pipework is too small or the pump inside the boiler is clogged/giving up.

The hot water issue is more difficult, is the hot water temp related to when the heating is on ?????

Which Worcester have you got.

mog

mplaczek

Hi Mog, Thanks for the post....

We have a Worcester 24CDi

Yes it could be that the pipework is too small... the piping for the rads runs above the floors at skirting level. Thus the previous owners had the piping in the more discreet 9mm stuff. Is there anything that can be done now to remedy this without serious works?


As for the hot water, we have had the heating on for the majority of the winter, at least at a low level. Would the heating limit the hot water? I thought about that, as in the evening, presumably when the temperature is dropping there could be a greater demand on the heating... but I did not understand why the water in the kitchen would still be really hot.

Thanks

Mog

It sounds like pipework then which means replacing with the correct size 15/22mm.

I would get the gas working pressure checked when the hot water is running by a Corgi engineer.

I take it the bathroom is a fair distance from the boiler, if so then temp fluctuations maybe caused by light scaling in the plate heat exchanger.

mog

mplaczek

Thank you very much for the help Mog...

It is always really useful to be armed with a little information before calling someone out.

Yes, the bathroom is quite far away.

Is there anything else I can check easily to help better diagnose the problem?

Thanks

Mog

I think now is the time to call out a Corgi Engineer, the main problem you will have is finding a good one, try and get a recomendation if you can.

Mog

Ringpeas

You might have an airlock in the radiator pipes.
The Rads may also just need balancing.

Both caused similar problems in my house

mplaczek

Great, thanks for that... I'll check on that too.