I might have a damper leak since ive been reading the flashing 4 is for that problem. My problem started this past saturday, having a leak from the water source line I had to shut off water supply to the fridge. My fridge started making that beeping sound like when the door is left open for too long. thinking it was nothing, We went away for Memorial weekend and came back yesterday and the freezer completely defrosted and fridge was warm but everything was on. unplugged and cleaned and plugged back in and the freezer started to cool. Today though, freezer is cool but not totally cold, not making ice and the fridge side is still not cold and temp display was still flasing 4. is it really the air damper? can i test it out before i buy a part. Is there a reset button? LOL Any help is appreciated, Thank you