Googled error code, found YouTube video describing issue and fix. Ordered the door switch/lock (which was suggested as the issue item) and opted to also order a new fastening ring in case the old one broke during removal or replacement. Selected next-day shipping option at the time of order. Followed instructions in YouTube video. The repair was easy but fiddly. Took longer to reinstall the fastening ring than it took to do the rest of the repair. Opted to install a new fastening ring although the old one looked like it would have worked fine. The washer works like a charm. Order and delivery from Appliance Parts Pros was exactly as described - correct parts received by noon the day after the order.was placed.