If water is leaking into the freezer, becoming ice; inspect your ice maker tray. It should be a even colored gray/tan. If it appears splotchy and rough, the non-stick coating has leaked water underneath the coating and corroded the aluminum tray. This allows water to migrate over the edge of the tray and leak into the freezer.
If that is the problem, a new replacement ice maker is available for $39.
I just put one in my Norcold 1200LRIM last month, it works great.
Originally Posted by bobmac
If you have a leak behind the fridge, make sure the water valve / solenoid on the Fridge is operating properly. If it wasn't properly winterized, it could have a small crack causing water to leak out. I have had to replace two water valves - one the Norcold and the second on my Samsung RF197 this year. Bother were my fault for not properly winterizing. Good luck,
I've never pumped antifreeze through the ice maker line, never had a problem with it, I simply unscrew the incoming water line, remove the valve bowl and drain both areas, reassemble and move to something else.
To siphon water from the supply line, when the connection to water valve is removed, and other end(remove inline filter) is also opened; I use compressed air blown across the frig end to create a suction and pull out the water.