No heat from mixer shower valve

Joined
18 Sep 2007
Messages
7
Reaction score
0
Country
United Kingdom
Hi all,

A couple of weeks ago, my shower stopped giving out any heat. Only Luke warm\cold. As the shower was a few years old in thought it was duff. I purchased a new one but that did the same. The manufacturer's engineer came out to look.
He said it was an imbalance between the hot and cold pressure. He took the shower off the wall and turned the water back on. You could see that the cold was fast flowing out of the pipe but the hot was markedly less so.
Does anyone have any suggestion as to what could suddenly cause this? I don't think it's a leak as there's no damp patches anywhere and the kitchen ceiling is still up! I have a Worcester Bosch combi boiler if that has any bearing.

Many thanks in advance.
 
Sponsored Links
Joined
18 Sep 2007
Messages
7
Reaction score
0
Country
United Kingdom
Hi. Pressure at the bath and basin when taps are fully open is different. Cold pressure is greater. I have mixer downstairs so cant really tell there.

Cheers.
 
Joined
18 Sep 2007
Messages
7
Reaction score
0
Country
United Kingdom
Yes, that's correct. It's consistent across shower\basin\bath.

Could there be something in the boiler restricting the flow of hot water or something? <-- complete guess!
Thanks.
 
Sponsored Links
Joined
4 Mar 2016
Messages
99
Reaction score
6
Location
Wiltshire
Country
United Kingdom
you need a boiler engineer then, pity the plumber who installed it never tested the original shower first, something I always do on any appliance so there's no come backs
 
Joined
18 Sep 2007
Messages
7
Reaction score
0
Country
United Kingdom
Gas engineer it is. At least now I know what the possible cause is. Is it a big job to clean\replace the heat exchanger?
 
Joined
4 Mar 2016
Messages
99
Reaction score
6
Location
Wiltshire
Country
United Kingdom
have to wait for a gas engineer to answer that one, have you got a scale inhibitor fitted like a combi mate,if you're in a hard water area it's a must.
 
Joined
18 Sep 2007
Messages
7
Reaction score
0
Country
United Kingdom
Thanks for your replies everyone. Turnsnmout the boiler is still under warranty so the Worcester engineer is booked to take a look.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Top