DIY Doctor

Removing Thermostatic Cartridge in Shires Thermostatic Shower

Postby arnsbrae » Sun May 22, 2016 12:33 pm

I have a Shires thermostatic shower. I need to remove the thermostatic cartridge for descalling or perhaps replacement.

I have removed trim, isolated water supply and removed the plastic temperature limit disc.

So far so good.

However, when I try to unscrew the cartridge I seem to be removing the centre of the cartridge rather than the whole cartridge itself. I can't figure out how to get the whole cartridge out as a whole piece. There isn't a grub screw in this unit...

Any tips would be very much appreciated.
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Simply Build It

Postby DeeperD » Thu Jun 22, 2017 6:23 pm

Wondering did you have any success removing the cartridge? I've just had the same problem. Centre part moves rather than entire cartridge...

What was the solution??
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