Please help problem with thermostatic mixer shower

[Tomm6220]

Hi all I am new to the forum and am desperate to resolve this problem, I have a thermostatic mixer shower supplied by a combi boiler. It's Hudson reed if that helps
The fault is when I open the shower anymore than about 1/4 it cuts out, there is a clonk noise from inside and it cuts the water
The shower will run hot and cold providing I do not open the lever any more than 1/4 but something is obviously wrong.
I have included a link to my shower
http://www.ultra-group.co.uk/produc...udson Reed&types=2&rangeid=227&productid=3077
Please help!

 

[JohnD]

which side does the hot water pipe go in, and which side the cold?
(see section 6 of the installation instructions)

who installed it?

did it ever work?

 

[Tomm6220]

Hi yes it worked fine up until recently been installed for over a year have checked hot and cold connections are the right way round also

 

[picasso]

The clonk is probably the thermostatic failsafe closing the supply, it operates when the temp goes over 46c so if your water isint as hot as this then it means a new cartridge, as your shower is just over a year old I would contact hudson reed and explain whats happening, it should last longer than a year.

 

[Agile]

I wonder if he has just got the DHW temp up too high on the boiler?

They are not expected to be left at max!

Tony

 

[Tomm6220]

Thanks for your replies if you are referring to the temp control on the boiler I have tried this on minimum and no joy, I feel I should add that the original fault occurred when the shower and the washing machine were on at the same time, which made me think it was possibly a flow problem but now it does it every time the shower is on