From what I understand when the electronic/computer parts and boards begin to fail, especially one after another it may be time to start looking around for something else. Depending on your needs it may be wiser to go to a vintage machine that is a workhorse without plastic parts. I have several machines that are vintage machines that just keep on going like that little Energizer Bunny, and machines with plastic parts that are not worth saving or repairing even one time. I have replaced (myself) the computer board in one machine since it was just a few screws and plugs from the computer to the new part and the machine worked fine. I had to wait a fair amount of time to get the part was all.