Trevi CTV thermostatic built in shower valve

Hi. I think I have this model, and it looks like the drawing on your website. Its about 10 years old. The shower can only get luke warm. We have alternately switched off both the cold and hot supplies to it and even with the cold supply to the shower turned off, the water coming out of the shower still only gets luke warm. There appears to be a reasonable supply pressure in each of the cold and hot supplies to the shower. The other taps in the house run very hot. We have not been able to dismantle the valve to get to the filters and cartridge, which according to other questions you have answered seems to be the next step. So two questions: 1) what do you think is wrong? Cartridge? and 2) can you refer me to a video or other guide showing how to disassemble the shower valve? Thanks very much.
Asked 8 years ago by Jamie
It would appear that you have a faulty thermostatic cartridge in your ,

www.showerdoc.com/trevi-ctv-thermostatic-valve-built-in-shower-valve

The diagram is the only source of how to remove the bits.

I should say that most jobs on showers although relatively easy (from my point of view) can be fiddly and an extra pair of hands, long thin fingers and the strength in your hands of an all in wrestler are a help!

The secret is, observing very carefully when things are taken to bits, their order and orientation, taking notes and/or photos as you go can also be a help.

When you are working with electricity and water so make sure it is switched off and turned off before you start.

If you think you can do the job but aren’t just that confident, it may help to buy the part and compare it to the faulty part, you will then be able to see where the screws, wires, nuts, or washers etc. go, if then you think it is to complicated, at least you will have the part when the plumber or electrician arrives.

We will always be here to offer help and advice if you run into a problem, however it is not the same as being on site where we can get the overhaul picture, if you are still not sure, now is the time to call in a professional

Answered 8 years ago by Anonymous

Thanks for your advice. Can you suggest a way to get the handle 43 off? Think we are ok from there. Thanks.

Answered 8 years ago by Jamie Allan

I think that this handle just pulls off.

Answered 8 years ago by Anonymous

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