Thanks for this fix ! I’m planning to try it in the next few days, this clicking noise is really annoying. And since my Roomba’s dock is next to my computer, I was convinced that the noise was coming from one of my hard drives ! An old broken hard drive of mine made the same kind of noise.

Just one question : the capacitor on the picture is a 10µF/63V, but you say a 10µF/25V is ok in the instructions… which one should I take ? By chance I found the exact same MOSFET in my local store, so no issues on this side.