Hi Rachel, no your machine was made by Smeg so there is no black cover.If there is only the one light,then there is no error.It may be that the pcb has failed electronically and would have to be replaced or it could be the door lock is broken and it will not change programmes as it thinks the door is still shut.have you had trouble opening and closing the door recently?.If so you will need anew control panel,they are quite reasonable at approx £35 plus vat and postage.Hope this helps, All the best.
FOXY
November 2008