the E09 code relates to a small electronic switch on the main control board called a Triac. the fault code is saying this component is faulty. to be able to change this you would need to be able to solder small components into a circuit board
Also just because the fault code occurs does not mean this is the actual fault. it could also be a faulty motor or a fault in the board causing this
If i had this fault i would check the component with a multimeter to see if it was short circuit before i investigated further
Dave