The generator was not too small. The trailer was returned with the adapter on. I tested it when the trailer was returned and the generator/AC ran for 30 min with no issue. This is a operator error.I NEVER said the stove didn’t work. I did however ask the renter if they were going to use the oven so I could explain how to use it. He said they were going to bring their own cooking equipment. I tested the stove and oven and they worked great. Once again, operator error.Unfortunate that they came home early due to an uncomfortable trip without AC. I was never called for help to troubleshoot even I told them to please call if they need it. They complained about turn+brake light issues. I tested them with my truck and the following renter’s truck and it worked fine. I recommended them checking their fuses of their tow vehicle.I was professional and empathetic when communicating about the problems but was met with the opposite. They even lost my leveling blocks and left tail light cover but I’d rather pay to replace them myself than to deal with these renters again.As far as the deposit money, my images on record before the rental showed the fender skirt intact without damage and it came back damaged. I can’t be expected to take on the additional costs for something a renter is liable for. It’s not fair to me or my family.