Karcher K2 pressure washer with faults (Bletchingley RH1)

See photos. Karcher K2 pressure washer. It works, however the motor stays on the whole time while turned on, rather than just when triggure is pressed. Also leaks a little water while running. One wand also has a fault so doesn't spray as it used to. Maybe it can be fixed or used for spares? Say when you can collect.