Per your symptom there Is a high chance the fan I ls collapsed in ice and won't rotate . This is not going to give and error code because it's intermittent and mechanical rather Than signal error. The problem is the drain tubes are closed off with foreign debris. To repair the issue unplug the unit overnight this will serve as force defrost . The next remove the cover plate on the back of refrigerator ,now pull the drain tubes ,water should come out the drain holes, make sure to remove the foreign substance wash the tubes place them back , vacuum around the condenser are and . Plug in the refrigerator. The issue should be resolved.