Hi all, I have the salus auto balancing actuators 230v on a 12 port ufh manifold. I'm also using heatmiser neo stats for each room. I've had them installed for a while now and thought they were fit an forget. It seems they do not work as claimed. I noticed a pipe run was not heating up where i have 4 ports on the manifold to 1 zone, 1 actimuator was randomly closing after a very short period of initial ppenening. I've also just changed another 1 as the pin was not moving far enough to close the valve. Gone and done the recalibrations many time now with limited success. Been sat watching the flow meters while it's in use and played about with it to actually check if it restricts flow when the delta in within 7°. This doesn't actually work. I took the temperature sensor from the return pipe and put it onto the flow pipe next to the other sensor to trick the thing into thinking that the flow and return temp is the same, turns out the flow rate doesn't get restricted at all. So quite pointless really and I'm contemplating changing them all back to the standard actuators and balancing every pipe run manually. Which now seems more like fit and forget. The only thing I can see they are good at is they are quicker to fully open and close than non auto actuators.