Problem is this.. van on seasonal pitch.it is a 2010 swift freestyle. we arrived fri evening.. i switched the heating on 2000 to warm van through.. my daughter switched the kettle on for a cuppa.. after about 30secs the electric tripped in main box outside also tripped the heater trip in caravan.. i reset all trips electric back on but heater not get hot.. only cold air circulating.the green light is on when i switch to 2000 or 1000 or 500 turned temp dial to 9 but still no heat being generated. Its all worked fine previous to tripping but now no heat.. not sure if the weather is too warm for temp sensor to switch elements on or have i missed something when resetting trips.