On rare occasions I've had a power connectivity problem with my fridge - the power plug stops making good contact with the socket. Since the fridge is a fairly high current device, a good connection is key to reliable operation.
The fridges I've got are Dometic 35's, and they come with a two-piece power plug. The "cigarette lighter" tip can be unscrewed, revealing a two-prong plug that resembles a 120v AC plug:
ARB fridges have the same plug, and they sell matching two-prong sockets:
https://www.quadratec.com/products/96010_1012.htm. What's nice about these is that the prongs make better contact than the other style, and the plug can be secured in the socket by screwing the outer sleeve of the plug into the socket.
I ordered two of them to replace the power sockets in the Trail Kitchen and a power panel I use when I have the fridge in the Jeep but not the Trail Kitchen.
The sockets are an easy swap - they fit in the same holes and the connections are via spade lugs just like the cigarette lighter style outlets.
Installed in the Trail Kitchen power panel (it's the bottom socket):
Installed in my alternate power panel. On the right the plug is inserted and the sleeve is screwed in: