Frigidaire FRS6R5EMB Side by Side Refrigerator "gallery cool draw freezes" Questions

cool. Eventually, though, so much frost builds up on the evaporator coils that the circulating fan can't draw air over the coils. There may still be a small amount of cooling because the coils are icy

...gallery and it shows high temp on the door panel I reset it to 37 but then I goes right back to high with 59° temps the fan is running it just won't get cold any ideas FREEZER /FRIDGE NOT COOLING: ...