Those temps are with in reason.....would like to see lower freezer temps.
What temp setting are you using?
What are outside temps?
Is fridge in a slide out?
Does it have cooling fans in outside compartment...are they working?
And the $$$$ question......is the rig level?
Operating the fridge when in off-level conditions causes damage (blockage).
Damage from off-level operation is accumulative and not repairable
So every time it is run off level and little more blockage can/does occur......reducing the ability to cool.
IF you end up having to replace...replacement cooling units (new & rebuilt) is cheaper than a new fridge.
Great place to get cooling units.......
LINKReplacing with a residential fridge (compressor vs absorption) is an option....provided you will ALWAYS have 110V AC power source.