Don't remove been there tried that. When travelling it blew out the gas. The plywood is to create a chimney for the heat. There should be a piece of plywood from the top back of fridge to the top of the top vent hole. I just went thru this. Mine was missing that top piece. I also insulated the false wall between range and fridge and above the fridge. Sealed up the area with foil tape. Fridge is working much better now. Wall ia cooler on range side and freezer is colder
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