You vacuumed the coils. You gave the condenser fan a pep talk. But your Sub-Zero still isn’t cooling properly? That means the problem goes deeper — and it’s time to stop pretending it’ll fix itself.
The next suspects: failing evaporator fan motor, faulty thermistor, or sealed system issues (yes, the expensive kind).
Let a real tech isolate the problem — preferably one with a toolbag and a clue.