I am a technician for Asko in Australia.The blackness on the motor control unit(circuit board) is probably carbon dust from the carbon brushes in electric motor.Likely problem is motor brushes have totally worn the armiture in motor or the MCU needs replacing due to earth leakage or short.Purchasing the parts from Asko should be no problem, but if you purchase and install electrical componenents only to find problem unresolved, you can't return installed parts for a refund. Also the breather hose from the detergent dispensor to outer tank can leak from tank connection when spinning load , and result in water running down outer tank and onto the electric motor causing circuit breaker to trip.....possibly damaging motor too. Goodluck!!

Can't help you a lot with this. you should be able to buy the spare over the net. however be careful, circuit boards often burn out due to an external fault. trace where the burnt items end up on the connectors of the board and trace the wiring to see if you can check if an external component is faulty. i'm in UK not US