e90 error in communication between main pcb and user interface.take lid off and you will see a blue wiring loom with 5 wires that goes from the main control pcb on the side of the machine to the front control panel.these get loose connections which in turn give this fault code.re-crimp loom connectors so there is a tighter connection on the user interface pcb or replace loom with a new one.
ck
August 2008
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