Hi friends, I have a big issue, I have three pump (6105 Tunze) connected to my APEX and all have a 18V jumper, a friend of mine gave me another 6055(very old) but it have a 24V jumper, It start to work well but when I connected to the APEX cable the pump stopped to work, I disconnected the APEX cable and the pump didn't start, I think that it is damaged, do you know if it can be repaired? and why the pump didn't work anymore?