Central locking on habitation door not working!

Could well be a fuse gone ............ but which one? 

I had a problem early this tear with my 2012 X-Trail. Central locking packed p and the only door that could be accessed was drivers door with key. replacing the fuse 5 mins standing on head so to speak. Finding out where the fuse might be a couple of hours on t'internet.

What make of MH have you got?

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On the basis your key fob is battery operated then it may be a simple job of replacing the battery. 

I think this is a common problem possibly caused by the hab door locking being an add on to the base vehicle's system.

We just locked the hab door with the key - simple. 

Motorhome 2013 Laika 595R.  Hubby checked fuses etc.  Thanks for replies but it looks like a look for lose/broken wires in door when home. 

If you look at the bottom of the hab door hinge side, you may see a rubber type tube.

Peel back the tube and check if the wire inside has broken - if so splice the two broken ends together.

Hope this helps

on our last car but one this would happen, for some reason a squirt of wd40 in to the locking mechanism always cured it

Thanks, Keith and Margaret!  Will look when light tomorrow!  

If it is a problem with a fuse, isn't it likely to be a Fiat fuse as the habitation door central locking is simply a rerouting of the van rear door locking?