Aqualisa Shower Pressure Problem

[MA_Bling]

When I turn on the shower or bath, initially the pump runs (quite loudly) and only a trickle comes out. I have to alternate turning on the bath and shower before I get a reasonable flow. Then once it is running, if the water is at maximum temperature on the mixer it flows smoothly, but as soon as I decrease the temperature, the flow starts to pulsate. Do you think this is an issue with the pump or the system? Any advice most welcome please.

 

[Lou]

Hello, have you fixed your shower and if so how did you do it?