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If you have a switch in the caravan that says van / car make sure it's set to van .

The fan behind the heater is probably clogged up with dust and the bearings may be dry , a single drop of oil should make the bearings run better .
I think you'll find the fan runs on 12volts , so you may have some of your system working .

May be a idea to check the battery has a full charge .

atb

Wizard

The lighting circuit will have a fuse in it, you need to find where the fuses are and check which one has blown and replace it. If you ring Lunar ar a lunar dealer they will tell you where the fuse is and which one it is.

Are the halogen lights perhaps a retrofit that an owner did somewhere down the line. Maybe they haven't used the correct diameter wire and that could then cause it to melt? Like you said above..

I am assuming the hologens are also correctly power rated? If thay are too high they would draw a heavy load current wise which might again overload the system?

Have you tried taking the bulbs out and fitting the fuse back without any current drawn? Does it still blow then? What about dropping the watts bulb wise, does it still occurr then? This is the 240volt system you are talking about now? Halogens draw too much power for 12 volt?

Quote: Originally posted by Chowey007 on 26/5/2010

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  Halogens draw too much power for 12 volt?

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Halogens are standard fit on my caravan, and in fact domestic halogen bulbs all need a transformer with them to convert the 240v to halogens native 12v. However, if they have replaced any of the Halogen bulbs they are quite likely to have replaced them with a higher power rating bulb as the norm for caravans is a 10w bulb and the ones available in most supermarkets are a minimum of 20v.

I bought a selection of 12v 10w halogen bulbs from ebay a couple of weeks ago after having had the first bulb to replace in my caravan for 7 years.

Quote: Originally posted by Chowey007 on 26/5/2010

Are the halogen lights perhaps a retrofit that an owner did somewhere down the line. Maybe they haven't used the correct diameter wire and that could then cause it to melt? Like you said above..

I am assuming the hologens are also correctly power rated? If thay are too high they would draw a heavy load current wise which might again overload the system?

Have you tried taking the bulbs out and fitting the fuse back without any current drawn? Does it still blow then? What about dropping the watts bulb wise, does it still occurr then? This is the 240volt system you are talking about now? Halogens draw too much power for 12 volt?

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Quote: Originally posted by janus on 26/5/2010

Quote: Originally posted by Chowey007 on 26/5/2010

  Halogens draw too much power for 12 volt?

Halogens are standard fit on my caravan, and in fact domestic halogen bulbs all need a transformer with them to convert the 240v to halogens native 12v. However, if they have replaced any of the Halogen bulbs they are quite likely to have replaced them with a higher power rating bulb as the norm for caravans is a 10w bulb and the ones available in most supermarkets are a minimum of 20v.

I bought a selection of 12v 10w halogen bulbs from ebay a couple of weeks ago after having had the first bulb to replace in my caravan for 7 years.

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