When Heat Tape Doesn't Heat

A couple of days ago, I discovered the roof heat tape I put up in September decided to stop working. This is not good as ice dams are starting to form. So I went out and bought a new roll of heat tape and have been working on chipping away the ice so I can get it properly on the roof. The good news is that when the old tape was working, it formed tunnels in the snow so there was good drainage. With a little luck and a couple of more days of warm weather, I will get the new tape up well enough to work. The bad news is I am on roof duty instead of skiing. On the other hand, I hear snowbowl has been PACKED the past few days to the point where folks are getting only 4-5 runs in.