I have removed my broiler element because it broke and I am now trying to replace it. Two questions. Are there two wires for each terminal, two red and two blue to connect to the element? Or just two blue and one red? And, because they are screwed on and not clipped on, how do I connect the two onto one terminal? When I screw them on, the top one stays on but the bottom wire falls off. Can I connect them both from the top? I'd appreciate any help. Thanks