Dishwasher Has No Power AGAIN!!

This is the 3rd time that this has happend. The first time I found that the thermal fuse was blown, replaced it, happend 1 week later and i found that the connections on the thermal fuse were really loose. I assumed lose connection casued it. Replaced and lasted 2 mo. I dont know what to do next because it has no consistant blowing of the fuse? Please help!