Ariston AML125 Washer/Dryer not draining

Hi, I currently have an Ariston AML125 washer/dryer and this morning I woke up to discover the machine had never drained the water after the wash cycle. My partner, not realsing what had happened, and opened the door to have most of the water start pouring out. I noticed the 'door lock' LED and 2 other LED's were fashing crazily. Is anybody able to give shed some light on what the problem may be, and also whether it would be worth fixing. This will be the 2nd problem the machine has had in 2 months, so I am also pondering the option of just buying a new seperate washer and dryer. Thanks!!! :-)