I am a first time pop-up camper owner. Took in a second hand unit that I had bought. It felt as if the refridgerator was not working properly. They called me the next day and said it was opperating properly. And that it will not cool down too far, 60 degrees is good from what they said, since the valley is so hot. So for that I was charged $120. Felt it was advice that could have been issued over the phone. Instead, I feel they did nothing and I paid the price.