I have a thread on the hydros forum for this issue. I have 4 perfectly good working Tunze pumps, I bought a control4, 0-10V quad cable, and 2 Tunze adapter cables back in March. I finally hooked it up, connected 2 pumps it was so easy every thing worked great. Ordered another two adapter cables for my other two pumps and they don’t work unless I go into the app and put them to the override off position. Did a bunch of trouble shooting and testing and concluded it must be the cables. I got two new cable from Hydros on Saturday. Yesterday when I went to replace the two cables I have that don’t seem to be working, I noticed that they are about twice as long as the cables I have that do work. Upon opening one of the replacement cables I just received I noted that it too is longer than the working cables. I hooked this new replacement cable to my X4, set up a 0-10V output pump profile and it just doesn’t work, exactly the same as the other two cables I already have that DON’T work. The pumps only function in the override off position. I tried all different combinations I could think of in the settings, I tried calibrating the Tunze controller. The pumps work fine without the hydros, they work as expected with the two shorter cables as well. Is it possible that these longer cables are from a newer shipment/batch and they are wired incorrectly? I find it hard to believe that I have 6 adapter cables 2 are shorter than the rest and work and 4 long ones don’t work and it’s something I’m doing incorrectly. I should note they were all purchased in three separate orders. Any help would be appreciated.