Bristan 1901 Recessed Thermostatic Dual Control Chrome Shower Valve N2 SHCVO C flow valve not closin

[fletcher7751]

Good evening chaps

Having issues with this new valve.
It is serving four body jets, all tiled now (waiting for the 14 day grout cure before full pressure test)
Fitted jets, cracked supplies to check watertight, and this happened.....

Top flow valve closed, temperature valve set mid way
Crack cold supply isolator - all good, no flow to jets
Closed that, cracked hot water supply - hear flow through pipes, dribble then constant low flow from the two lower jets - not enough to fill the jet loop so top two stay dry

I did flush all pipework through and sealed ends prior to tiling
Fitted valve with filters and flow regulators, then tried to check as above
Took valve off, filters clear

Called Bristan, very helpful, sending out new flow valve
I tried to take the old valve out, it is tight and started rounding off the nut so stopped.

Any similar experiences?

This shower was chosen by the customer so they could set the temp and shut off by the flow control and it would be set right for future use by just using the flow control.

I have connected it correctly, from front - hot left, cold right outlet on top - you doubt everything after a while......

Looking online at the Bristan website, they only show taking out a combined flow and temperature valve for cleaning - not helpful

HELP!

 

[ShaunCorbs]

double thread

Bristan 1901 Recessed Thermostatic Dual Control Chrome Shower Valve N2 SHCVO C flow passing valve

 

[fletcher7751]

double thread

Bristan 1901 Recessed Thermostatic Dual Control Chrome Shower Valve N2 SHCVO C flow passing valve

Apologies for double post, not knowing how the forums work l posted in wet rooms and valves hoping to get to the guys experienced in this field.

 

[steadyon]

Try it with hot and cold isolators open at the same time. You might need to reset the temperature calibration.

 

[fletcher7751]

Try it with hot and cold isolators open at the same time. You might need to reset the temperature calibration.

Thanks steady on, i'll try that
A new flow valve is on the way, l took out the original one today and it appears fine, no sign of debris - but there shouldn't be l did flush the open end through fitted the valves with filters flushed again then took the filters out and they were clean when l fitted the regulators.
I haven't fitted Bristan before, what is the procedure to reset the temp calibration?
Thanks again

 

[steadyon]

Sorry, don't know the recalibration from memory. Have a look at http://www.bristan.com/product-files/577278/fitting-instructions.pdf page 22.

 

[fletcher7751]

Sorry, don't know the recalibration from memory. Have a look at http://www.bristan.com/product-files/577278/fitting-instructions.pdf page 22.

Cheers steadyon
I have the install info from Bristan with the valve l fitted, but there is nothing in there re setting adjusting temps., shame that.
The valve l fitted has a separate flow control and temp control, that was throwing me, simply the flow should shut off the outlet, but it isn't. Need to get that sorted when l get the replacement cartridge from Bristan before l can test temps.
14 day grout curfew from the tiler up tomorrow so can do full pressure test if cartridge arrives, just cracked the supplies up to now.
Usually kitchen and bathrooms, not wet rooms for me, l was volunteered for this on compassionate grounds....

 

[fletcher7751]

Cheers steadyon
I have the install info from Bristan with the valve l fitted, but there is nothing in there re setting adjusting temps., shame that.
The valve l fitted has a separate flow control and temp control, that was throwing me, simply the flow should shut off the outlet, but it isn't. Need to get that sorted when l get the replacement cartridge from Bristan before l can test temps.
14 day grout curfew from the tiler up tomorrow so can do full pressure test if cartridge arrives, just cracked the supplies up to now.
Usually kitchen and bathrooms, not wet rooms for me, l was volunteered for this on compassionate grounds..

The replacement ceramic cartridge came, fitted it and eureka...or not....it doesn't drip anymore
Thanks for the replies