The top broiler burner was coming on only half way. One part of it would heat up but the other half did not. I removed the burner which was easy enough just by unscrewing four screws at the top. I unhooked the electrical connections. I then checked the burner for for conductivity and found that the inner burner had burned out. Replacing the burner was easy enough except one of the wire connections had broken off. I replaced it and made all the connections and the broiler worked.