[DarMar]

Dale:

Were you aware that these things go in to a defrost/shutdown cycle every 48 hours?

The first trick though is upon the first start up the first defrost cycle occurs after the first 60 hours and then each 48 hours after that. Therefore one should always start their fridge up at around noon to 2 o'clock so the defrost cycles will always occur during the cooler night time hours as the temp will rise somewhat during this cycle.