Real McCoy
New member
Bought a new 2023 Avalanche 390DS with a Norcold 12 volt refrigerator. Used it for the first time and while the refig works it had thrown a E4 code and it wont go out. The code is for door open but they aren't open. I tried to shim the magnets with no change. The freezer door also won't open after you open and close it. Seems to be a vacuum lock. Talked to 3 RV techs but none had any ideas other than what I tired. Anyone have any ideas?