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Mira Excel Squealing noise

This question is regarding Mira Excel (1990-96) Cartridge - 903.33

The cartridge is making a squeeling noise that only happened after work was carried out on the mains. I think that the filters may be require replacing how do I do this or do I need a new cartridge?

Asked 7 years ago by Anonymous
Hi  The squealing noise is caused by a worn cartridge or by imbalanced pressures for example the pressure in the cold supply is much higher than the hot.If you have problems with an Excel 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. To replace the cartridge or check the filters   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 you should now be able to see the filters.   If you are replacing the cartridge, 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 Link to cartridge    
Answered 7 years ago by Anonymous
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