wildebus
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A compressor fridge is quite a bit different to an Absorption. The heat is generated by the compressor unit which is at the bottom of the unit. there is no heat generation anywhere else. With my last camper, the (compressor) fridge was not vented externally at all and I fitted a computer fan that pointed directly at the compressor. When it kicked in, the temp drop was notable.I think the potential issue is that the fans might just circulate cold air in and out of the grill without it being pushed up the back of the fridge to the top where the work is done. And the already hot air that is just circulating up by the fridge fan too. I’m pretty sure that’s what happened with my attempt to improve things with the 3way.
If you were trying to improve cooling/airflow to a larger degree (maybe in a very hot environment?) you could fit fans to both the top and bottom vents, with one set to push and the other to extract.