If you wake up in the morning in your motorhome then it was OK. If you wake up in Heaven, that's even better. But not necessarily so for your loved ones. If you wake up in hospital then you can thank someone for rescuing you.
Seriously, burning gas of any sort gives off a lot of carbon monoxide. It must be one of the least painful ways of committing suicide. First you feel a bit sick and dizzy so you lay down. This lessens the impact of you hitting your head on something on the way down to the floor. Secondly you get a very nasty headache and you turn properly pink. This is because you are losing oxygen in your bloodstream. Then if you haven't realised what's causing it and get some fresh air, you pass out. Then you don't wake up.
If you have a Carbon Monoxide (CO) detector in your van it will scream at the smallest amount of CO so pay it attention. I was recently made aware of the importance of the CO and smoke detectors in motorhomes when I looked inside the wardrobe door of my recently purchased motorhome. I expect it set off the smoke alarm.
This is what I saw:
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As I say I have recently bought this AutoSleeper Bourton. They fit a nasty cheap wardrobe light which comes on when you open the wardrobe door, and in theory turns off when you close it. I guess it stayed on, either because the door wasn't closed or the switch was faulty. Either way, any motorhome manufacturer should not be fitting light units which can set the furniture on fire even if the light is left on permanently. OR possibly the previous owner fitted a more powerful light bulb in the plastic light housing. I don't know so I am not directly blaming A/S.
The wiring connections leave a great deal to be desired which I don't think AutoSleeper would have done so I suspect in reality it has been done by Mr. Bodgit or Mrs. Runn. This makes me think that someone has fitted a totally inappropriate light fitting - although A/S original wiring to the original light has that type of white wire. I can't even work out what two items of crimp connector have been used - there seem to be two crimp connectors somehow joined, when in reality of course only one would be needed to join two wires. I haven't undone the joints to find out.
I have left it as it is without repairing or investigating the wiring because the dealer I bought the motorhome from is being absolutely co-operative and accepting liability and is in the process of supplying and fitting a new wardrobe door panel and light unit. But if you have an AutoSleeper it would be a good idea to check the wardrobe light fitting. The original has 12v 5W moulded into the light fitting base plate - but it comes with a halogen bulb so it may even so have overheated if it was left on for hours, in which case A/S need to rectify their bad design and recall all such fitted motorhomes.