Has anyone experienced a cooling issue while using propane either with the freezer or the refrigerator not cooling? My AC side work as it should, both are cold as it should be. Problem is when switched to propane, the freezer works wonderful, but the refrigerator stays warn. I have ohm the thermistor out. 10K warm and 21K in a class of ice water. from what I gather, it is normal. Coach is in a level position.