Subject washer power chip exploded on the motor control board. This site and others show you must use part # 1 which includes both the motor and mcu if it is prior to series 88
The series number is the first two numbers of the serial number, this one is 78 which is prior to 88. This means I must use part #12002039
I plan to order part 1 which is both motor and control board and hope it works.