Only a guess as it works on gas then on elecs it could possibly be the on/off switch.
Not sure but think they are pushfit but go careful. You can take a digi picture before removing the wires then test switch with a multi meter linked to the terminals if no reading switch is knackered. The other is a bad connection somewhere in the wiring. You could check with Electrolux www.electrolux.co.uk or electrolux.com
Bob
August 2009