I recently posted about losing the drivers' side seat heat. Well, after a few day absence, it's back! Don't know why. I had left the dial set at 3 from the last time I checked it. This (cold, rainy, etc.) morning, it works! Any ideas? Please don't say it is a short in the heating coils and that one day the seat will suddenly burst into flames as I'm cruising down the highway! - amz