Once I had removed the old and most likely broken dometic fridge from my 1988 Dolphin, I had the idea to replace the duplex receptacle that powers it with one that could use power from the 3000 watt inverter, or the normal connection to the 15 amp service from the main coach circuit. It was very inexpensive, maybe $5 at "home cheapo" for the box, receptacle, screws, romex connectors, etc. I used the original power supply from the old fridge to send power from the inverter to the lower receptacle, and then some standard splicing for the coach circuit on the top one. If you do this make sure to SPLIT both the hot and neutral tabs on the receptacle! The circuits need to be separate.
So, this allows a new all electric mini fridge to be put in place that will not have the difficult leveling issues of the 80's fridges, are convenient and cheap to replace, and energy efficient. The size of 32" H X 19"W fits great, the depth can be around 20" but can vary a little bit. The fridge can run constantly while driving or parked as long as there is battery power.
However, I must give you this warning. The old fridge may not "fit" through the window, door or wherever you try to take it out. There's no turning back once you decide to mangle your fridge into pieces to get it out, as I did. Make sure to measure the door of your coach before you get a fridge! Mine is 20" wide but they will vary.
Please post any comments or questions, this was an easy, cheap project and I'd love to see someone else do it!
Cheers,
Dr. Black
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