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Twin valve thermostatic shower with diverter

Postby malk » Fri Apr 23, 2021 10:51 am

I have a twin valve thermostatic shower. An overhead "rainfaill" style head and a smaller hand held one on a hose. Been having problems with the overhead shower going hot and cold. Removed , cleaned and recalibrate the temperature cartridge but it's still intermittent.
The hand held nozzle seems fine, keeps a steady temperature. It also comes out at a higher pressure whereas the overhead seems a lot weaker.
Could this be a problem with the diverter valve or because the overhead is higher up?
Had the combi boiler checked and told it is okay.
Thank in advance for any advice.
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Simply Build It

Postby stoneyboy » Sat Apr 24, 2021 8:59 pm

Hi malk
Whether this is a new or existing problem matters not, it is probably due to the boiler not providing a continuous flow of hot water when on max demand.
Regards S
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