Unvented hot water cylinder -constant running water

[Plumberpaul]

Hi all,

I installed an Albion unvented hot water cylinder about 6 months ago, no problems up until now! Although now I can hear the constant sound of running water in the cylinder cupboard, seems to be from the balanced cold water! Which just runs to the thermostatic shower, so I isolated the shower and can still hear the noise? So I isolated all the mixer taps in the house and can still hear it? The hot water never gets up to full temp but gets warm! And takes quite a while to heat up! Any ideas?

Thanks

 

[mysteryman]

Get your installer back.

 

[Agile]

Was this fitted by a G3 registered person?

Does turning off the mains feed stop the noise?

Tony

 

[Plumberpaul]

Yes and yes! Mixers don't have check valves on though, although isolating the mixers and showers should app this shouldn't they?

 

[PlumbGas]

Yes and yes! Mixers don't have check valves on though, although isolating the mixers and showers should app this shouldn't they?

If you have a balanced supply which you implied you have not having check valves won't matter as you have the same pressure on the hot and cold, although check valves are best practise

 

[dcawkwell]

Did a pressure reducing valve get installed???

Maybe it is faulty and allowing the higher pressure hot water to
feed back into the main??

Other possibility is if you have a vented boiler the coil in the cylinder
is leaking allowing the water from the tank to vent into the header tanks?

 

[swbjackson]

Did this replace a vented system? You may have a leak under a floor or hidden somewhere. This would explain the noise of water flowing and the inability of the unit to reach temperature.

 

[Plumberpaul]

Hi all,


Thanks for your input, found the problem to be a leak under the concrete floor! Took a few months for it to appear! Going to install new pipework drops from the loft so will b sorted soon!

Thanks again