Customer Questions and Answers for Refrigerator Defrost Timer by Ge

Hello Jack, The defrost cycle duration and cycle time is determined by the defrost timer in question. There are many designs to accommodate different cubic foot units and for different configuration machines. The one for the model number you listed is shown to be a 16hr./35min. This means that the unit will run for 16 hours before going into a 35 minute defrost cycle. After the 35 minutes in defrost, it will start another 16 hour run time before going back into defrost.