# No red lights on controller **URL:** \ **Category:** ❓ Something's Up\ **Created:** [November 15, 2020, 6:11pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881 "2020-11-15T18:11:27Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![flxstr](https://forum.sienci.com/user_avatar/forum.sienci.com/flxstr/32/594_2.png) [@flxstr](https://forum.sienci.com/u/flxstr)\ **Post date:** [November 15, 2020, 6:11pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/1 "2020-11-15T18:11:27Z")
I have no red lights, but to do have a green light on the power brick, and I can also see a tiny green LED flashing close to where the power comes into the controller (maybe the arduino?). Jogging the power switch has no effect. Machine was bought in April - any suggestions? ---
**Author:** ![Heyward43](https://forum.sienci.com/user_avatar/forum.sienci.com/heyward43/32/369_2.png) [@Heyward43](https://forum.sienci.com/u/Heyward43)\ **Post date:** [November 15, 2020, 6:19pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/2 "2020-11-15T18:19:25Z")
Contact Sienci. Sounds like known power switch problem. ---
**Author:** ![flxstr](https://forum.sienci.com/user_avatar/forum.sienci.com/flxstr/32/594_2.png) [@flxstr](https://forum.sienci.com/u/flxstr)\ **Post date:** [November 15, 2020, 6:53pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/3 "2020-11-15T18:53:39Z")
Confirmed. Wiggling the power switch causes it to “bounce” the red lights on/off - but will not stay on unfortunately. No CNC playing for me today it seems. ---
**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\ **Post date:** [November 15, 2020, 7:30pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/4 "2020-11-15T19:30:11Z")
@flxstr Mark: While you are waiting to see about a replacement controller, you can bypass the switch and plug the controller into a power bar to turn it on and off. I’m attaching a pic of the terminals that you bridge to make this happen. I did this with my original controller. It took all of about 5 minutes ![mill-controller](https://forum.sienci.com/uploads/default/original/2X/d/d8da4bf9fd72a1563e43c9519acc61b9654f66ce.jpeg) . ---
**Author:** ![flxstr](https://forum.sienci.com/user_avatar/forum.sienci.com/flxstr/32/594_2.png) [@flxstr](https://forum.sienci.com/u/flxstr)\ **Post date:** [November 15, 2020, 7:42pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/5 "2020-11-15T19:42:36Z")
Wouldn’t a power bar be the incorrect voltage there - wouldn’t it be better to use the power output from the brick instead? ---
**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\ **Post date:** [November 15, 2020, 8:23pm UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/6 "2020-11-15T20:23:00Z")
@flxstr If you bypass the switch, the controller is always on. I suppose you could cut the cable from the brick and put a switch into that. It’s much simpler to plug the brick into a power bar and simply use the power bar’s switch to turn the Mill off and on. That way, there are no cables to cut. It’s your call, though. I just wanted to keep it simple. ---
**Author:** ![flxstr](https://forum.sienci.com/user_avatar/forum.sienci.com/flxstr/32/594_2.png) [@flxstr](https://forum.sienci.com/u/flxstr)\ **Post date:** [November 16, 2020, 12:30am UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/7 "2020-11-16T00:30:02Z")
it’s later in the day, and I’ve had more coffee. now I understand what you mean by “bridge”. LOL That would be easier. ---
**Author:** ![Troym](https://forum.sienci.com/letter_avatar_proxy/v4/letter/t/439d5e/32.png) [@Troym](https://forum.sienci.com/u/Troym)\ **Post date:** [November 23, 2020, 1:17am UTC](https://forum.sienci.com/t/no-red-lights-on-controller/1881/8 "2020-11-23T01:17:03Z")
I had the same problem. I bought an E-stop from Amazon and soldered it to the connectors from the original rocker switch. Works perfectly and now I have an E-stop. I had to pull the case off the controller to do it properly, That case is built like a tank. I also wired in some LED lights that I have at the back of my stand so I know that I left it on when I’m done cutting, I have forgotten it on over night before. Not anymore though.