I had this exact same problem with my first Empeg and my first Remote. David replaced it for me. Since that time I have bought more Empegs and remotes, now I own 4 of them. Today, the last one working just died on me. They all show the same symptoms. As far as I can see this is a serious epedimic. I will try new batteries, but since most of the remotes had rarely been used, I fail to see how a low voltage condition was to blame.