Did you manage to get this resolved, I have the same issue, was thinking of buying a new PCB if its easy to replace?
Gary
September 2011
pcb track may of blown on the push buttons.also check fuse.there should be a fused connection somewhere may be behind chimney cover and not visible without removing chimney
ck
September 2008
I can answer this question...
How can I fix my Electrolux 90cm Chimney Cooker Hood [EFC-9530X]?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cooker hoods.