Mains sockets not working

Are all the things that work on the nearside and the only 240v items on the offside are the two sockets, if so my my guess is there is a plug and socket join in the 240v loom taking the supply to the offside that's come apart or there is a inline fuse in the loom feeding the offside where that would be I don't know.

On my 2000 year Swift there are several nylon 3 pin connectors in the mains wiring, it might be worth tracing the cable back from the faulty sockets to se if one of these has a bad connection or even come apart.

i would agree, something has come adrift in the loom.   Manufacturers do tend to make the wiring very short, so putting a strain on joints.

We had a similar problem on our 12v system, a plug and socket nearly went on fire.

Thanks for the suggestions; I hadn't bothered starting to trace connections at the time - partly because I had assumed that the wiring would be mostly hidden in the walls and roof, and partly because I didn't have my multimeter with me.

Anyway, having got back home and traced it through, it looks like the wiring is mosly under the floor, and most of the connections are accessible in cupboards

It appears to go:

1. Consumer Unit (offside)
2. Socket next to door (nearside)
3. Socket next to kitchen sink (offside)
4. Socket on bunk (offside)
5. External socket (nearside).

Based on the symptoms, there's a disconnection somwehere between the socket next to the door, and the socket next to the kitchen sink.

Of course, this means that the failing connection is likely to be the only one that's inaccessible (behind the fridge).

And, whilst towing the van back home, it magically fixed itself (until it decides to break again).

Grr...

I presume you have removed the non working sockets for a look at whether the wires are attached securely?

Also....can you access the wiring behind the fridge via the fridge vents?  They are relatively easy to remove.

If not, even a fridge is not that difficult to remove. 

I would try one of those socket testers it will show if one of the wires is not connected plus it would be wise to test the working sockets with it as well I always carry one plus a multimeter in the caravan