First, check the guidebook to try and diagnose the problem.  The most common problem involves the compressor and fan. Check to see if the compressor is working. If it is, check that there is enough air circulation and that the fan is spinning in the refrigerator. If you still can’t find the solution, you can check the manufacturer’s guidebook to try and find the problem. If that doesn’t work, we suggest calling one of our professional technicians.