keeps trying to fill

On all 3 cycles washer keeps trying to fill.
I have to rotate the dial manually to get it to progress thru cycle.
Thankyou,
Bill

I think there is an error in your model number, but check and see if there is a tube going from the water level switch to the tub, and if so, clean it out and see if that fixes things.

Never heard of this brand before. Is it a oven or cook top?

In any case here is a page with error code information.

https://www.northlondonappliancerepairs.co.uk/error-codes/gaggenau-error-codes.html