Larry R Ocala , FL March 25, 2016 Appliance: Model SAMSUNG WF331ANW/ Door would not latch and washer would not start error code fl (fail to lock) This is a Samsung WF331ANV front load washer. I ordered the door switch assembly and installed it in 5 minutes.washerworks fine now. youtube video shows exactlyhow to do the repair. Can be completed from front via door gasket. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes