This question is regarding Mira Excel/Select Thermostatic Cartridge - 903.33

.mira select

i have 2 mira select showers in my home and now both struggle to get a descent spray when used in fact its more of a rickle . can u give me any idea as to the problem
Asked 13 years ago by Anonymous

Hi

 

If you have problems with an Select then it's best just to replace the cartridge, however it is probably worth stripping the cartridge out and checking that the inlet filters are clean, before buying a new cartridge.

 

When the cartridge is out give the pipe work a flush out.

 

This will take two!

 

If your valve is recessed pack an old poly bag round the valve to divert the water into your Bath / shower tray then turn the hot and cold valves on one at a time and allow the water to flush through for about 15>20 seconds.

 

The person who is helping you should watch that the water is not going anywhere that is going to do any damage also they should watch that the amount of water coming from the hot and cold they should be roughly the same.

 

 

 

Turn off hot and cold water supply

 

Pull front temperature knob off The rest of the knob assy. just unclips

 

Remove 4 screws that hold cartridge into body

 

Pull old cartridge forward shouldn't be too tight

 

Set new cartridge for High/Low pressure (instructions with cartridge)

 

Slip new cartridge into place remember to check that the new seals are all in place (and don't drop out as you push back)

 

Tighten screws be careful not to over tighten

 

Refit knobs.

 

Turn on water and test. (Occasionally you will have to reset the cartridge temperature, instructions with cartridge)

 

Easy peasy!!!!

 

 

Cartridge   Mira 903.33  This cartridge supersedes the previous high and low pressure versions

 

 

 

 

 

 

Answered 13 years ago by The Shower Doctor

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