Ice maker not working

We have a Samsung model RF263BEAESR. Our ice maker only works when you use the reset button to get the ice to drop. I've had the icemaker replaced and am still not getting ice automatically. The technician keeps telling me we do not have enough water pressure to fill the ice maker reservoir. We've tested it and have 60 psi from the water line to the refrigerator. The repairman also told me that the way this ice maker works is the water is released via a set time to fill, not how much water is put into the ice maker reservoir (bad design). So, my question is, if your ice maker is working, how many seconds does the water run to fill the ice reservoir? Ours only runs approximately 3.1 seconds, which even at 60psi I don't think is long enough to fill. Any advise is welcome. Thanks.