this info applies to Electrolux,Zanussi and AEG machines with E90 error code
lid off and check blue wiring loom from pcb to dispay pcb.E90 is a communication error and could be due to a bad connection on the display pcb where that blue loom connects.If it isn't loom it will be a display pcb or main pcb issue and costly repair
CK, December 2012
