Why is there no power?

Press On switch, no response. Switch out 13A fuse with working 13A fuse from kettle, no change, washer fuse works in kettle, Switched back. Plug washer into another (working) power socket, no change Removed lower back panel, removed black rubber assembly, removed coins, stickers, labels and bits of wood(!). Cleaned assembly and drainage hose with white vinegar. Reassembled, no change. A week later I noticed that when plugged into wall, flick wall switch, red LED display flashes up briefly and disappears. Any help greatly appreciated!