If you took the actuators off, did you leave them connected?
3 blinks means driverside front actuator, I think. Try swapping the front 2 actuators as a test and see if the number of blinks changes from 3 to 4. Also, if you look under the bottom side of each actuator, you should see the slot shift about 30 degrees when you change the switch. If one of them isn't, that ones the problem.