So this us how it started , bought hyma and fridge did not work on 240 v even though 240v switch worked , also would not work on gas , now the 12 v light came on as supposed to when engine was running , because the fridge was not working I purchased another electrolux fridge (different model), now when connecting the wires , I noticed the electronic ignition did not work on fridge , and the 12 v switch lights up without engine running , (could a relay be stool open ? ) now if I swap the wires over to the other pair , the gas electronic ignition works fine , but the 12 v switch light dies not come on , even when engine running , I know that hyma used blue & brown wires , blue been the live , one pair of the two seems thicker wire ( same colours ) ime guessing this would be the 12 v supply and the slightly smaller wires are the electronic ignition, I can here the on board charger running too , seems fine , now I was wondering on my 1994 Hymer b534 where the fridge relay is likely to be situated , in the dash of the fiat with the other relays and fuses , or internal in the blue charger box under seat where 240 v breaker is , the fridge works fine on 240 v , ( now if the relay can't be fixed or got at , would it be possible to join the two feeds together onto the two wires that have power , as not used at same time and will make sure the 12 v is only used when driving , ? In affect by passing a faulty relay , thanks in advance nunny