Maytag Epic Z washer, model number MHWZ600TW02. Our washer was shutting off, not draining the water, and the door was locked. Error code F21 and F31 (F31 error code was not noted/shown in video, but the manual says it was the pump overheating, likely because of error code F21). In summary, some thing is stuck in the drain, the drainage filter, or drainage pump (Maytag no doubt has fancier names for these parts)…But shown in the video is how to access these parts and fix it yourself. YOU can do this!