Please help !! I have a sterling Cruach Cullin c.Van 2001 .Can anyone tell me how I get my 12vls lights/fridge working when I'm not connected to my car or E.H.U.???
Thankyou Reg for your Quick replyStep one
Do you have a leisure battery and is it fully charged?
HI Dave ,This is all getting very confusing.Hopefully the following will cl;arify the situation
1 - the fridge will only work on 12 volts from the car battery when the car engine is running. As shown by the red light on the fridge.
2 - the caravan battery will not run the fridge at all - the fridge is not connected to the caravan battery nor is it connected to the onboard caravan charger.
3 - the fridge will run from 240 volts when the van is connected to the EHU (as shown by the green light) - this is a 240 connection to the fridge, not a 12volt connection from the caravan battery or charger.
4 - the 240volt EHU supply should charge the caravan battery using the onboard charger.
5 - the caravan battery should be charged from the car only when the engine is running.
6 - with no EHU or car connected the fridge will only work from gas.
7 - 240 volt services in the caravan (240v sockets and lights, electric space heater, microwave and hot water boiler) will only work if the van is connected to an EHU or 240volt generator.
8 - 12volt services and lights (usually including the heater fan and hot water boiler controls) will work from the caravan battery or from the onbard chager when the caravan is connected to the EHU.
8 - the space heater will work from gas and the fan should run from the 12volt services, the hot water boiler will work from gas so long as you've got a 12 volt supply (either from the on board charger or from the 12volt caravan battery)
Hi Jennifer,An excellent explanation by Dave.
You asked about the car/van switch.........
I would say to put it in VAN position and leave it there while using the van.
The car position is for emergency use only. If the van battery is flat you can power your 12v lights, pump etc by plugging the 12S into the car (with engine off)
The centre position is to isolate the 12v system, but this is not required while towing as the habitation relay in your van should take care of that automatically.
If you have the fridge with the red and green rocker switches/lights, put both red and green on, that way the fridge will use whatever power is available without you having to remember anything. Then you only have to put it onto gas manually if there is no 240v.
You also need to ensure that the 12S wiring on your car is compatible with your van, there was a slight change in 1998.