Focus electrical issues

[Angry Sheep]

My 2003 Focus seems to have a problem with its electrics. When I got in it the other day, the passenger door didn't unlock with the central locking and then the inside light didn't go out after the door was closed.

When I went to use it this morning it had a completely flat battery - the doors wouldn't even open. Jump started it and it was fine, but again the passenger door needed unlocking manually. It doesn't do this all the time, just occasionally.

Has anyone had similar problems or have an idea what it might be? The alternator looks to be fine and the battery was replaced earlier in the year. It did have a flat battery a few months ago that was never traced but the electrics have only just started playing up.

[105Nick]

Have you tested the battery. Mine was fine, parked up over night and the battery was dead, however after trying it the wipers started going after removing the key. Its okay now I have a new one.