I have a 6 pod aero with herbs. Today I added nutrients for the first time and the screen says "press ok". Which I did and it is still flashing. No matter what I do or how many buttons I push or press and hold down it won't clear.
May I ask is the unit a Classic 6 or a Harvest? Did you purchase new from AG or Amazon?
I had this issue with an older unit Harvest. It was within warranty so they replaced it. However in the meantime I just unplugged and reset the garden. Not the ideal solution but it works. I had 84 days on it and spent almost a day resetting the days. Tedious yes. But since them I just keep track on my Google Calendar now for ALL my gardens.