FD8010 Enr D8990NOGB
I suspect the pcb is at fault as the motor starts to hum when the hood is
switched off. How do you gain access to the PCB as it looks like a Krypton factor test.
Franz
if you take off the chimney section , all should be revealed .
Or have a gander here to see the exploded view https://www.neff-eshop.com/eshop(bD1lbiZjPTAwOQ==)/neff/gb/prodp.htm?prod=D8990N0GB{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d}2f01&ESHOPTYPE=S