[ApplianceJunk]

I take it that this is a side by side refrigerator.

Check to see if you have any frost build-up on the inside back freezer wall towards the bottom.

If you do have frost build-up then you have a problem with the defrost system.

Also check the condenser fan that is at the bottom rear of the refrigerator near the compressor. It should be running when ever the compressor is running.