Take the advice you see above. This just happened to me with a Music Hall Maven that I use in a room just for TV sound. I was planning to give it to Goodwill, but just for fun I plugged it back in, and guess what? It worked fine!
When I turn it up, it turns down
I have a NAD M3 and have this weird problem. Whenever I try to crank the volume up, it turns itself down. It's very annoying. I have to fiddle with the nob for a little while and then it FINALLY turns up. WTF? Has anyone else had this problem? How to fix? Please advise!