This question is regarding Sirrus Ts 503-t - Shower Spares

SIRRUS TS503 thermostatic valves

I BOUGHT A HOUSE THAT HAS A JACUZZI-TYPE BATH WITH A SINGLE TAP THAT DELIVERS HOT AND COLD MIXED WATER. THIS IS PRESENTLY NOT WARM ENOUGH. THERE IS A CIRCULAR VALVE ON THE SIDE OF THE BATH WITH A RED AND BLUE ARROWS LABELLED AS ABOVE. THE BATH COVER PREVENTS ACCESS BUT THERE IS A CIRCULAR HOLE AT THE CENTRE. IS THERE A CUSTOM KEY FOR THIS OR DO I GET ACCESS BY REMOVING THE BATH COVER AND TURNING THE BIG ROUND KNOB. IT IS LABELLED SIRRUS TS503, BUT THERE IS NO "-t" . Thanks.
Asked 6 years ago by Graham
www.youtube.com/watch?v=tFu44LLh994

The hole may be for access to a cartridge , as shown above.
If you can send some pictures of the set up it may help us identify what you need.

Answered 6 years ago by Barrie Seabright

Please find attached picture. I can't see the screw mentioned in your video. Any suggestions? Thanks
Graham Ellis

Answered 6 years ago by Graham Ellis

www.showerdoc.com/sirrus-ts-503-t-shower-spares

The screw is down the centre of the hole.

If this does not change the temperature then you may have a faulty thermostatic wax cartridge.

Answered 6 years ago by Barrie Seabright

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