Thanks Mike and Yngmar, think the fridge unit itself is working fine. In the height of the summer, I get a lot of condensation around the lid particulaly at the front which I'm guessing is due to the cold air escaping. The old black seal in the base certainly looks like it needs replacing so that's the first job. Think I've found some 1/2 round neoprene at sealsdirect which should do the job. I had a quick look earlier this year at the insulation but couldn't find any access to it. Maybe another look when I get out there in the spring and also squirt some expanding foam in the area if I cant get to it.