1. When camped you MUST be Level
2. 120 or LP will not make a difference on cooling, UNLESS your CG line voltage is below 115 volts. If so, then switch to LP
3. A MUST tool for RV'ing is a Multimeter to test both 120 voltage and 12 volt.
4. In Transit, you DID have it on LP? Also, there is a drain line for the Evap fins to drain the water off when the fins de-ice. THAT tube comes out the back side of the refer where the outside refer access door is. THAT tube can allow hot air to migrate back up in transit and cause the lower section to raise in temp. You can temporarily block it off for in transit operation and unplug when camped
5. The normal operating temp of the Freezer is 10 degrees or colder.
The normal for the lower section is below 40 degrees
6. You just joined, so remember to always post Year and brand/model of RV and Brand and Model of appliance. You cannot get good help without that info.
7. IS the refer in a slide room? Doug