Trevi mixer shower valve poor flow

Shower comes on okay initially but then flow suddenly dies off/almost stops after a few minutes. Alternatively, shower fails to come on from the outset. Confident that there is no lack of pressure to the inlet side of shower. Could this be a thermostatic cartridge problem?
Asked 7 years ago by Glynn
It maybe blocked filters on the thermostatic cartridge or faulty flow cartridges

Answered 7 years ago by Anonymous

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