Hotpoint washer BWD129 won't finish cycle

I did a load of towels and had the machine set to hot water, no dry, and white cottons. The cycle appeared to complete fine, the door became unlocked, and I removed the towels and hung to dry.
I then put in a load of a couple of sweaters, set the temp to cold water, kept it on no drying, and set to delicate cycle. I closed the door and pressed start. When I came back into the room a few minutes later, I noticed that the washer appeared to be heating up and steaming, almost like I'd imagine if it were going into a drying cycle (even though there hadn't been one set).
In any case, I couldn't get the machine to stop, so I finally just shut off the power. The door eventually unlocked and there is a remaining pool of water inside the machine. I left it unplugged for several hours, hoping it would reset itself. Every time I plug it back in, the controls remain unresponsive, but it starts to heat up steam again. I finally thought it was just stuck in the middle of some cycle it thought it was going through, so I let this run for another 3 hours - no changes and the water remains.
Hotpoint's website says that the spin cycle won't engage if the container is unbalanced, so I put in some old towels and plugged it back in.. same results.
So my questions: (1) is there a way to hard-reset the machine? Unplugging for several hours doesn't appear to do it; (2) has anyone else experienced this? (3) Any guesses what might be wrong, or should I just call repair?
thanks in advance!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Site Timeline is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.