Some Electrolux dryers come outfitted with a child lock feature to prevent unintended door openings. Some Electrolux dryers have a characteristic that locks the door during a drying cycle for security reasons. Sometimes, initiating a new drying cycle and allowing it to run for a short second can set off the door to unlock. Electrolux dryer door not unlocking is commonly attributable to energy supply points, cycle is incomplete, door swap points, youngster lock is activated. • The error might be attributable to a break within the cables between the hatch lock and the I/O board 10, or caused by a error in the hatch lock solenoid. Check wiring between the primary control board and motor management board.If good , exchange the motor control board. Ed4Relay which commutates power between washing heating aspect and drying (within the WD board)Wiring faulty; WD board faulty; PCB faulty. This code might also point out an issue with the microwave management board.