Cold water coming from hot water taps (turning hot when one tap is opened!)

21 Sep 2018
Reaction score
United Kingdom
The boiler is filling up the unvented cylinder with hot water as it should but the hot taps and showers have increased in pressure and only release cold water (maybe a dash of hot water blended in).

Intriguingly, when a particular hot tap that is near to the tank is opened (I haven't tested yet with the others), the nearest shower goes hot and operates as normally.

Any ideas what this could be, and approx. price to repair? I'm a bit baffled! Thanks
Sponsored Links

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