Worcester 350 Combi problem: Luke warm hot water in taps...

13 May 2009
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United Kingdom
Hi there

I could really do with some assistance here. My Worcester 350 Combi is not delivering hot water like normal when the hot water taps are turned on. You get some warm water, but not really hot. I also find that although the central heating is not turned on, the radiators start getting hot when turning the hot water taps on.

When the central heating is on, the hot water is delivered fine in the taps. Can someone please tell me what parts may need replacing and where I can get these parts. I can then get a plumber to fit these.


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diverter valve, bit like a three port, situated underneath right at the back has a white head on it.
Thanks Holty for such a prompt reply.

Any idea where I can buy this from and rough prices? Is it easy for a plumber to install?


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alls i can say i was lucky at xmas was full of flu so didnt know were i was. so isolated the iso valves,alls i can say is a 1 hour job didnt turn into a change the iso valves job, hence. a good engineer will give you a good idea of the change on your system and how much.

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