Answer Edgewater Appliance, We have sent an instruction sheet for this dual infinite switch. The diagram has a dotted line around it and the letter or number on the outside is the new switch marking and the inside of the dotted line is the markings of the old switch. Follow instructions for the jumper wire and in the case, you are installing this on the cve3400 model the two red wires connected to the L2 spot on the right front switch needs to be separated and the one that is not a jumper from switch to switch will need to be connected to the number 2 on the new dual switch. Read More... Answered by AppliancePartsPros.com | Tuesday, May 28, 2019