Hi, Before my first week-long trip with the new to me pup, I plugged it in for 2 days before my trip and I'm positive it was cool when we left. Once at the campground, it had lost it's cool and it never got cool again until I tried using the propane mode, which works great. Also, note that when we arrived at the camp, I noticed a few hours later that the GFI outlet had tripped... not sure why or when that happened. Any was, now I'm back home and I plugged it in last night, almost 24 hours ago, it has not cooled. Can someone walk me through troubleshooting this? Thanks!