Welcome Gaustein,
Don’t know how far you are from your dealership. If you purchased your 2100bh new, you should have gotten a thorough and complete PDI, which takes at least an hour. Not to be rushed. It’s something you will be thankful for for years to come. Plus the PDI will reveal if one or more components may not be working properly. So if you didn’t get your PDI (you paid for it), you should seriously consider going back to the dealership for a scheduled PDI. If that’s not possible, while you’re out camping, you definitely should operate all of your components and appliances to determine if they all work properly. If they don’t, you can schedule a warranty repair before you get too far down the line.
If new, you’ll most likely have a Dometic 12v compressor fridge. You can try it at the various setting, but IMO, the best setting is performance level 1. It seems to be the best compromise between keeping the fridge very cold and using as little power as possible. You definitely want to test the hot water heater on propane. Make sure the inside valves are not in bypass position. On propane the hot water heater works very fast, and should start dispensing very hot water in less than 15 minutes. Test the microwave on microwave and convection. Finally, fill, or partially fill the fresh water tank so you can ensure the water pump is working properly. Many new owners report their water pump isn’t working properly. It’s usually because the winterizing valve wasn’t closed completely.
Have fun. There are a lot of Micro Minnie owners in the forum who are more than willing to help. If you will be active in the forum, please complete some info on your rig in the signature section of the User Control Panel (CP).