Blocked Filter

The hot water filter has blocked twice since I replaced the cartridge 11 months ago. I never had this problem with the old cartridge that had been installed for 19 years. Why am I getting this problem now and what can I do about it?
Asked 8 years ago by Jo
The blocking of the filter has nothing to do with the cartridge. You may have a storage heater or some other part of the hot side of the system which is breaking down and thus passing detritus to the shower filter.

Answered 8 years ago by Anonymous

View Product and Order Online:

Do you require any further help with Tap or Shower Cartridges?

Please click the following link if you would like to see other answers or ask a question regarding the Mira Excel/Select Thermostatic Cartridge - 903.33

If you've landed here and this question is not about your specific product, please take a look at these similar items on our Mira Cartridges page. Alternatively, if you're looking for any other brands you should view our full range of Cartridges.

If you would like to buy this cartridge or look others from the same brand, please view our Replacement Mira Cartridges (All)

For any other support request please get in touch.