Good morning my name is ***** ***** I will assist you with your query today.
E90 signifies a PCB failure, when did the fault occur, was it as you turned on the machine and selected a programme or mid cycle?
In most cases the PCB failure is due to a lose wire, if your happy to remove the washing machine lid you can inspect the ribbon cable which connects to the PCB's, and make sure it hasnt come lose.
If you prefer, please advise me of your postcode and I can recommend an engineer to attend and do this for you, they can then assess if you need a replacement PCB.
Good evening, I havent heard back from you in the last few days, do you still require assistance?
Good morning, I havent heard back from you in the last few days, do you still require assistance?