Help! Bristan shower cartridge , cant turn off cold water from shower

[Bettyboo]

Can anyone help please ?
I am in the middle of trying to clean/ service a Bristan shower cartridge for this shower

Recessed concealed shower
1901 Concealed Concentric Shower Valve | Bristan - https://www.bristan.com/products/mixer-showers?code=n2%20cshcvo%20c

It had started to drip after Thames Water installed a water meter outside . I was advised to clean the cartridge .
This morning I started to try and dismantle it to access the cartridge ,and as I started to do this the cold water started to run through the shower more and so I turned the water off . I got so far and could not remove the cartridge as the instructions are not clear and I cant find it on youtube. I am down to the level in the photos, I cant twist or pull the cartridge out . Am I supposed to remove the small plate surrounding the cartridge by removing the circular discs and parts either side of the cartridge ? Not sure how to do this .....I thought the cartridge would pull straight out when I got to this level

I reassembled it without moving the cartridge but when i turn the water on I cannot stop the cold water at all through the shower heads , when i turn the valve it just wont turn off

Please help , its now driving me mad ! thanks

Betty

 

[ShaunCorbs]

You won’t be able to clean that type of cartridge will require a new one sorry to say

Best guess the outer lever isn’t aligned/ closing off

Best advise try moving the flow lever over 1/2 a turn to the left if you close to the right if you understand me?

 

[Bettyboo]

Thanks Shaun but how can you tell I thought it would need a sk1850 -2 if it needed replacing? They sent me the attached file Bristan 1901 but this recessed version seems a bit different to these fittings . I would still need to get the valve out , do i remove the surrounding plate and how ?
to turn off the water at the shower ...Sorry dont know re closing flow lever , which bit is that in the instructions? . Thanks alot

 

[Bettyboo]

? fittings

Thanks Shaun but how can you tell I thought it would need a sk1850 -2 if it needed replacing? They sent me the attached file Bristan 1901 but this recessed version seems a bit different to these fittings . I would still need to get the valve out , do i remove the surrounding plate and how ?
to turn off the water at the shower ...Sorry dont know re closing flow lever , which bit is that in the instructions? . Thanks alot

 

[ShaunCorbs]

I would say that’s not your unit do you have a picture fully built ?

 

[Bettyboo]

I would say that’s not your unit do you have a picture fully built ?

 

[ShaunCorbs]

Turn the black plastic piece until the shower stops running then pull the black piece out and reset it to where the off position was before eg where the handle used to stop

 

[Bettyboo]

the black ring (I think the temp stop ring ) doesnt turn at all in situ

 

[Bettyboo]

I have partially assembled it to see what is happening , the temperature flow black ring doesnt stop the water being turned off ,if I turn the knob clockwise the hot water is turned off but I cant turn the cold off fully I think the cartridge keeps going round inside

Any idea anyone how to remove this inner plate please ?

 

[Bettyboo]

I have partially assembled it to see what is happening , the temperature flow black ring doesnt stop the water being turned off ,if I turn the knob clockwise the hot water is turned off but I cant turn the cold off fully I think the cartridge keeps going round inside

Any idea anyone how to remove this inner plate please ?

 

[Bettyboo]

Any idea anyone how to remove this inner plate please ?

 

[ShaunCorbs]

The one with the bristan logo on ? This doesn’t come out as it’s the body of the shower

The outer plate will come off from the wall normally siliconed on but all you will see is pipes etc

In your very first picture the white spigots / rods either side of the valve these must be the flow controls so my guess is that you’ve not attached/ moved/ not aligned the opac guide that is picture 2905

The cartridge will just pull out might need to twist a bit but have the water off first eg stop tap

As for the controls eg why it’s dripping the left and right brass caps with the two holes in eg holding the valves in that stop the flow

 

[ShaunCorbs]

This is yours

Bristan 1901 dual control built-in shower spares and parts | Bristan 1901 | National Shower Spares

Buy Bristan 1901 dual control built-in shower spares online. All shower spare parts for the Bristan 1901 dual control built-in in stock with same day despatch from the UK's #1 shower spares retailer.

www.showerspares.com

 

[Bettyboo]

Really annoying me now , Bristan sent wrong instructions multiple times ! only spent all day on this and still no luck....
turned water off outside but no luck cant budge / pull out cartridge
im assuming this is the replacement /what it looks like ? as is plastic

Bristan Plastic Thermostatic Shower Cartridge 00622415

Bristan Plastic Thermostatic Shower Cartridge 00622415 A replacement plastic thermostatic cartridge to fit various Bristan shower mixers including

www.plumbers-mate-sales.co.uk

i am worried about pinching with spanner where thread lines are as will damage it if i need to put back in

if i pull it out how do i turn off water but have on in rest of house ? do i do something to these as you have stated

"As for the controls eg why it’s dripping the left and right brass caps with the two holes in eg holding the valves in that stop the flow"

 

[Bettyboo]

trying to pull out with spanner