Shower tower unit make/model? Temp knob dripping issue

[Tech magos]

Hi

Can one of you you recognize brand/model of shower tower unit in attached image?
Think it's a hudson reed but not sure and do not know the model; over 10y model.

It has been dripping off the temp knob (bottom one of the 2) for a few weeks, getting gradually worse, looks it needs replacing of temp module or simply new washers but would like to know how to open without breaking and what spares i need and if they exist.

Any directions to fix this greatly appreciated.

 

[Pickwickpick]

Showerdoc will id showers & shower valves/cartridges, you just need to send off couple of photos to them.

Identify my Shower - https://www.showerdoc.com/contact-us/identify-my-shower