Currently there's a $15 promotion/coupon on the 32QT model: www.amazon.com/Kohree-Portable-Refrigerator-Cooling-Freezer/dp/B097P2P5RT?tag=adventurerock-20&maas=maas_adg_AFB6395EE51D35825E6B75F8B0BC262B_afap_abs&ref_=aa_maas
I am not sure about that error. I have not gotten it before on mine. It sounds like the thermocouple/sensor may be getting a bad reading. If the unit is not under warranty any longer, you might check and see if by chance a wire or sensor got loose inside and is touching something warm internally that is giving that false reading.
The smaller compartment is tiny! I wanted a dual function in order to have both a fridge and freezer at the same time but something with the same size space.
It should be fine. Just like a refrigerator in your house it will generate heat as a byproduct, so depending on the season it could get kind of warm in your trunk combined with the sun beating down outside in general. Might have to vent it if it gets too hot? It really keeps things cool though.
