mira digital mixer poor temp flow control

When I press the warm up button shower starts water gets hot and it stops itself but the water flow rate as it is doing this is the same as the low setting. works fine on low setting. flow rate on medium is just dripping. And on high flow rate is the same as low setting . I have swapped the controller leads with the other shower as we have 2 of these in one bathroom and mixer still acts the same and the controller works the other shower fine. Question is what parts is most likely to cause this fault ?
Asked 10 years ago by Anonymous

First check that the filters are clear and the check valvesaren’t sticking (Part 7)

Failing that it is likely that the valve assembly is faulty,you are fortunate in that you can swap the valve assemblies just to check as itis a fairly expensive part.

Answered 10 years ago by The Shower Doctor

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