https://forum.rc-sub.com/ Mtroniks supplies our cutting edge Speed Controllers. en Sun, 20 Sep 2026 12:55:55 GMT vBulletin 60 https://forum.rc-sub.com/images/misc/rss.png https://forum.rc-sub.com/ https://forum.rc-sub.com/forum/technical-support-and-tips/mtroniks-support/197238-problem-with-speed-controllers Mon, 24 Aug 2026 12:43:19 GMT Hi, I hope someone can help. Set up. One mtroniks viper marine controller running two motors, both motors running in both directions. One viper... Hi, I hope someone can help. Set up. One mtroniks viper marine controller running two motors, both motors running in both directions. One viper marine controller running two water pumps plus supplying power to receiver. This second controller has had the red wire removed. Both controllers have their own battery. Problem is that the pumps only go in one direction. I have removed both speed controllers from the Wtc and connected two new motors and a new pump ( I only have one space pump) and all work ok. But the controllers back in the model pump only one direction again. I have followed the mtroniks set up countless times with no joy. Anyone have any ideas, thanks MTRONIKS SUPPORT Michael440 https://forum.rc-sub.com/forum/technical-support-and-tips/mtroniks-support/197238-problem-with-speed-controllers