We've got a Bailey Senator Arizona 2006. Everything ok until last week. Small bang, followed by a plastic type melting smell where the fuses are kept. Firstly checked the fuses (in a silly place
under the seat) all fuses ok. No main electric lights, no on board charger or hot water heater. Swapped fuses making sure they matched but still no go. So the on board charger wasn't topping up the leisure battery. Water heater still worked on gas, but as the leisure battery wore down the water pump 12v only wouldn't pump water into the tank. Any ideas?? Could the onboard charger have had it although couldn't find it and have no idea what the hell it even looks like!!Help please.
A plastic melting smell wouldn't necessarily trip an RCD it may be a 12V fault.
As they have no lights or water heating it would indicate that there is no incoming supply.
If the RCD has tripped and the OP hasn't noticed it the battery charger won't work,they need to check the RCD and reset if it has tripped before looking for other causes of no supply.
saxo1
You need to find out where the melting plastic smell came from. If you have a multi meter (if not get one) check the line after the burn for a short circuit. You do this by switching everything off and switch on one thing at a time. The short will show up by the meter going to zero ohms. Other circuits will have a resistance if they are ok.
One other thing you could do is buy a battery charger and connect it straight to the battery.
Something made the plastic melt - you need to sort that before you re-connect the mains.
Have seen on some baileys of that age, that where the power cable comes through the battery box into the van a short distance down that cable there is often a inline plug. Have seen a few burn out. Make sure you disconnect from a power supply before you go looking/touching.
Hopefully the site or your home (wherever it was) MCB or RCD will have tripped meaning no electric connected to van. A fault of this magnitude could have passed even further upstream on the supply system.
A bang and a burning smell does indicate you've had a short circuit or similar electrical fault which needs rectifying.