Well, don't know what else I can suggest without being there to troubleshoot the machine myself. Here's a partial wiring diagram of your machine showing the current path for cold wash with purple and blue wire disconnected and jumped together. Power is direct to the cold water valve with temp switch set to cold/cold. There should be no power to the hot water valve with temp at cold/cold unless the board is faulty or something is hooked up wrong. It should be simple to figure out why the cold water isn't working with your jumper in place. Just follow the diagram.
- Samurai Appliance Repair Man likes this