Good point re the ice maker solenoid, Bill. But water can still be trapped if it’s not in the open position during blowout. I usually manually cycle the ice maker motor to do that, but it’s a bit of a hassle.
A new idea to me is using 2 wires with female spade connectors, connected to the solenoid’s male spades after removing its ground and hot wires coming from the ice maker. Fasten the temporary ground to some grounded point behind the fridge, and the other to some live 12 volt source back there. That should open the solenoid for thorough draining. I just got a power supply for my workbench that I’ll try next time, since all I have to do is set it at 12v and put its alligator clips on the solenoid’s spades. The ice maker itself is 120v, so the solenoid may be too, and I’ll have to safely do this differently.
Joel