Washer won't agitate or spin and hums when trying
So the other day my wife throws in a load of laundry and comes back hours later to find that the washer control knob is in the off position (as if it completed the cycle) and the tub is full of water.
I take a look and find that if I place the knob at the beginning of a cycle I hear a hum but no agitation. If I place it in Spin mode and activate the lid switch manually, it will make the usual sound when engaging the tub to spin but instead of spinning it just hums. Thinking that something might be stuck, I manually drained most of the water and attempted the same operation and found that the tub would move slightly (less than a eighth of a turn. I then attempted to jerk it into motion by leaving it in spin mode and repeatedly activating the lid switch and every so often I'd get a quarter turn of the tub and started to smell a slight burning odor and stopped after that.
I then found an article (well written) that talked about the motor coupling and ended up tearing the machine down only to find that the coupler was intact (not shredded/broken/disintegrated).
The last observation I can offer is that I am barely able to move the tub by hand (but seem to recall that I should be able to freely) but can move the agitator just fine (in the opposite direction of the tub).
Not sure if it's the tranny or ??