Whats wrong with our Bosch WFF2000 Washing Machine?

Whats gone wrong with our Bosch WFF2000 Washing Machine?

It was washing; got to the end of the progamme and did not spin properly; but manages pt pump al the standing water out.

Emptied it; tried running another was cycle to find that the drum spins too fast for a few seconds then stops; rather than slowly rotating like it should do during a wash??. Then pre-wash light starts to flash on and off

Tried to get it to do a spin cycle; the pump is running but again the drum spins fast for a few seconds then stops??; again pre-wash light starts to flash on and off.

Taken the back off nothing obviously burnt out; belts still on properly; main bearing seems fine; no leaks.

Could it be the brushes in the motor? Would this make it spin tooo fast in a wash cycle then stop?

Jo0Lz