Answer Hello George, This is not a big job as long as it is done properly. First unplug the unit. Now remove the main top. Locate the CCU and remove it from the mounting to the cabinet. Now the part that will make is a much easier job is to remove one connector and install it on the new CCU. Now remove the next wire connector and install it on the new CCU. Continue with this process of one connector at a time and you will be done in no time with no crossed wires. Read More... Answered by AppliancePartsPros.com | Wednesday, December 26, 2012