Hi there guys, I bought my converted ford transit last year. It's a B reg so a little long in the tooth but runs really well. The fridge is a dual fuel one but only seems to function when the vehicle is running. It either needs a good service to get it fixed or maybe I could get a second hand fridge fitted by someone, as I'm not feeling too confident to do this bit myself.

Can anyone recommend a good engineer that might be able to help as I'm a little stuck...I live in north London so the more local the better. Any help would be so appreciated. Thank you, Ben.