Guess who was at my door? *nods* The repairman. My hair was still awry and I was dressed in sweats. I had figured we'd be towards the last of the list since they guys are coming over from Victorville to here in Barstow (30 miles away.) He's a nice older gentleman. Salt & pepper hair, thin, dressed in brown and black colours. I explained about the defrosting and the popping noises coming from the freezer. After a few minutes of poking around he figured out the cause: the fan wasn't working correctly. Sure enough, he took a screwdriver and started to rotate the fan and it started right up again. He explained without the fan working the food was only getting cold from the side panels which wasn't enough to keep the food from being thawed, so, he's replacing the fan as I type this. I'm glad it's something simple and easily fixable.