The brush head has stopped working. I have cleaned all the removable parts properly and put it back together. However it still fails to spin. The vacuum motor is working fine!
So, next I took the main body to pieces to reveal the PCB. Using my multimeter I found there was 21V across the vacuum motor terminals. But when I went across the brush head supply terminals I get nothing. However if I go on the positive terminal of the brush head and the negative of the vacuum motor I get 21V.
i’m aware that there is some sort of overload to protect the brush head motor in the case of drawing high currents, and im assuming it’s in the negative line, but where is it? And can I reset or replace?