I had exactly the same as above. Fridge stopped working. Tracked it down to a rusty connection behind the electric panel.
Open the panel, get a torch in there. Where you see all the connectors at the back, towards the top/front there is a connection bar with a few connectors on it (red wires). This is what I found was rusted.
Put a new spade connector on the wire and connected it to a different peg, and it was fine.