F1 flood keeps going off all the time on the top

About 3 years either the lid seal is going bad or the actuators had a problem. These things prevent the seal from properly seal on the top of your tube then causing a leak to the bottom hosing of each drawer. If you pull out the tube you can see the bottom housing is wet. Based on what you described, I can see the bottom is on the top drawer. When it leaks so much, part of the leak is coming down to the lower one. The flood at the lower bottom housing is less then from the the upper one.