Thank you all for your help. After doing a little research, I think I discovered the problem. We had our heated water hose plugged in to outside outlet on side of coach. We recently had an ice storm and then this a.m. we had heavy rain for a few hours. The plug had gotten wet and I unplugged it and the extension cord plug had starting melting right where it plugs in. I think it may have damaged the outside outlet but not sure yet. I came back inside and pushed in the GFI red pop-out thing and it has not popped out since.So I think that have might haved caused this. Probably will replace anyway just to be safe.