This is Domestic brand, model # RM 2652, the serial # 344 01962 . Appreciate all the help
Ah ha ... that would be an Americana, correct? I had the same problem earlier this year. I'd have to get the manuals out again but as I recall certain problems will put the refrigerator in the default mode ... and it just keeps cooling and cooling. And as I recall there is no visible indication it is in the default mode. The troubleshooting manual should discuss this.
I tried removing and reconnecting the various connectors ... disconnected the temp probe and tested it per the manual (place in cool water, measure resistance) and it was ok. (If you need it I can get you specific info, just don't have it handy right now.)
Also talked to a tech locally who 'sounded like an ole timer at this' and he said the temp sensor probe in the refrigerator that mounts to the fin should be on the outside fin ... mine was I think on the second one in.
So I moved the probe to the outside, had reconnected the probe wire on the card, tried it again and ....
So which was it? Don't know, but suspect poor connection where the probe plugged into the card.
Once it got to the point where it wasn't broke anymore, I quit trying to fix it!!
If you're still having problems I can get the manuals out again and maybe will be able to help some, let me know.