BL-Touch not deploing / stops working at all

I’ve seen similar issues listed for problems with the BLT working after cancel/pause, such as this locked thread.

Haven’t seen any where a solution was posted. But the one above shows the consistency of the problem with the Sprite print head. I know this isn’t your build, but stay with me here…

In this old Medium article it discusses the “BLTouch failed to verify sensor state” error and mentions a possible cause being power loss.

This lead me to think how the sprite extruder has a separate/sub control board that acts as a junction box for several of the extruder mechanisms, with various leads for power coming off that PCB.

So I ran a new wire from the BLTouch directly to the main board and haven’t had a problem since. Hopefully, a similar solution may help you? Please don’t forget to come back and let others know if it does. :+1: