Diagnosed by observing a tiny fracture in the body of the pump where a drop of water would appear every 10 seconds or so while in use, which after a few loads of laundry would leave a decent puddle on my laundry room floor. Looked up the problem on appliancepartspros.com and bought the pump for $140 (after taxes and shipping). Part came two days later and the plug cover was cracked but figured it wouldn't affect the parts operation so installed anyway. Took about 30 mins to replace part. Seems to be working just fine now.