Whirlpool Refrigerator WRT318FZDW02 freezer warm but refrigerator cold

[repair2021]

Whirlpool top-freezer refrigerator WRT318FZDW02 is only 3 years old. The refrigerator seems to run almost constantly. At first, the refrigerator was too cold (freezing items). Door gaskets seem fine and I vacuumed the coils/area at bottom rear (behind cardboard plate) even though they weren't dirty. After several weeks, the refrigerator section is fine, but the freezer is not cold enough (top shelf is somewhat cold, bottom shelf is not cold at all) and there is frost on the back wall of the freezer. The evaporator (freezer) fan working. Any ideas? Thanks.

[shillion]

The block of ice on the right top corner tells me your fridge is almost out of Refrigrant.When there is low in refrigerant, the freezer is not cold enough, so the frid[size=78%]ge would keep running, in the mean time, the fresh food compartment is too cold. You would find out the evaporator does not have much frost after you cleared all the ice and turned on the fridge again. The big block of ice on the top right corner was there becsuse the defrosting cycle finished  too soon for many days,due to the fact that the evaporator coil did not have much frost to defrost.And the block of ice is too far away for the heat to reach.You will need to find the leak and fix it. This is my opinion from many years of fridge repair experience. [/size]