Have this printer which worked great for over a week. Took a day off and didn't print anything, with machine power off. Now it won't print anything, auto level or anything else. When i try certain things for example auto leveling it just sits there after it has heated to 120 forever... when i try to back out can't do that either, same scenario with printing. I just did the preheat for pla, everything worked and got hot then nozzle cooled off. Any help would be gratefully appreciated. Currently have it powered off, power unplugged and all connections I connected are undone.