Hi all

I have a dc75 and the brushbar works fine if the angle is past a certain point. If I tilt it slightly too upright, the brushbar turns off. I can only presume either some switch or spring has come off.

Does anyone know how this could be fixed. Is there an angle switch or spring?

Thanks in advance

Hope for your help.
I have got problem "not spinning any brush" with Dyson V10 Animal.
Everything works fine, except brushes. 
I found in internet a self-made schema of similar VC (not sure it fully correct). I also got V17 from a friend of mine for testing.
What I have done before this topic:
With an oscilloscope I checked what was going on when V10/V17 starts without connected brush.
And I got a same graph pattern on both VCs.
On good V17 pcb starts PWM output voltage on terminals (16 volts).
On broken V10 with connected brush : tries to start for short amount of time and instantly stops (by graph on oscilloscope same as like it not connected)
And I swapped U24, and U13 (ICs on schema) from V17 to V10 . And this ICs is absolutely OK.
At this point I can assume that V10 can't see a connected accessory brush.

 Unfortunately, lack of knowledge can't lead me to solution. I cant't understand how V10 get OK signal when brush connected.
 Hope that somebody helps me find a solution.
 Regards, Andy

Continuity test the cable from plug to switch, and switch to motor.
If the motor has blown you would normally hear a popping sound, and maybe some smoke.

Still got a blockage somewhere that is restricting the airflow? But must be fairly minor if it runs for 15 mins before shutting down.

Might be simpler to buy a used PCB, or find a scrapper that uses the same board.
New Miele parts are absurdly pricey, even if you can find someone who will sell them to you, as the spares supply is now locked down so tight.
Repairing a board at component level requires a degree of knowledge and skill that most of us do not have, unless it's just something like resoldering a dry joint.