I am surprised to find that when I switch on the Electrolux fridge (RM4201 I think) to 12v, it is powered directly from the leisure battery, such that when the engine is not running the battery is quickly discharged. Does anyone know if this is by (poor) design, or does it mean that a relay is not working? If the latter, any ideas as to where the relay might be located on the vehicle (Boxer)? On another matter, the fridge appears to be ventilated only through one vent panel whereas caravans I have owned have always had two, as stated in the manual. Could this explain the poor cooling performances on both gas and mains electricity? Has anyone tried to improve the performance by adding a lower vent panel?