Can you tell me why it is ok to have your refrig only cool to 38 ? Talking on the facebook page for Grand Design owners it sounds like many owners are having this same problem. Why have you not done something about this to help your customers. If the make and model you are using are junk maybe you should be looking for a different product. My last 5th wheel was much better never had a problem. My unit is about 6 months old the dealer tells me it is within the guidelines but still the items in the refrig are not cold. I am starting to have second thoughts about purchasing this trailer.