dougrainer, only owned the Newmar for 10 years and there is a dial thermometer stuck in the dash outlet and one in an RV air outlet that gets moved from front to back from time to time and I guarantee that when the compressor is running it will be close to 40 degrees. An0ther old rule of thumb is that with compressor running an automotive outlet air temperature will be about half of the outside air temperature/ That's basically the temp that is coming off the coil. What do you suppose the temperature is just before or when the coil frees up and the unit goes into defrost mode. If your coming through Alamogordo you have an open invitation to stop by and we will check it out