This morning, after a temp of 11 degrees last night and no moisture falling, the door opened with ease. Yesterday morning, when I got up, 2 large dogs with "legs crossed and eyeballs floating, my hairdryer had it open in 2 or 3 minutes. We had a very light, wet snow the day before with a wind, thus the "wet".
We are in relocation having moved out of our house. We have had the 2310 only since Tuesday. The weather has locked us in place for a few days as I don't like to travel in freezing temps.
We have freed many a frozen this or that with a hairdryer. I actually have two and will put one outside in one of those tiny bins, just in case. We did stay warm and toasty over night.