Any fridge should not be packed so tightly as to prevent the cold air from circulating round the contents. Those at the top and the bottom will probably be kept at almost the same temperature.
Try not to open the fridge too often or leave the door open too long.
By the way, levelling the caravan is more for your comfort in moving around on the level. The only effect on the fridge is that the door won't stand still when you open it.
The heat from the gas flame or the electrical element, is ducted up the flue and obviously flows better when perfectly upright but loses little of it's effect when at a bit of an angle.
If you use your caravan often (once a month like our club members do), the fridge can be left running on 220V if you have a handy power point where your caravan is parked. It prevents the inside of the fridge from getting mouldy and it can be stocked up days before you leave on a trip.
Carry a wooden block 120 X 45mm and about 450mm long, which has been shaped at a slope on one end.
Pull the one wheel of your caravan forward onto it to get it level. If the camp site slopes more than that, report it to the park owner and use another site. NEVER use the steadies to 'jack it up'. This will eventually cause the steadies or the chassis to distort.
Do not worry if you use wooden blocks under your steadies. This has no effect on 'earthing'your caravan. Your cable connected to the parks power point MUST have three conductors, with an earth connection to enable your caravan's earth leakage unit to operate.
Visit our Web Site at www.trekkersclub.co.za and read some 'Technical Tips' on these subjects.
Basil Louw. President. Trekkers.