Norcold 260.3 AC works great! Tried propane mode and pilot goes out when I release the safety button. I have gas at stove. I have the owners and service manuals. I have the pup set up in my yard-- could it be that the camper must be more level? Are Norcold fridge's that temperamental? Could it be thermocouple? Are there obvious troubleshooting steps to try first?