Puzzler this one it started with a flat leisure battery and thought this was the initial fault had a good run up to Kirkby Lonsdale from were caravan is kept about an hour's drive this should have put some charge in the battery. However got on site switched the electric's on still flat so I put it down to a fault on the 12s socket perhap's. Checked battery state after being on Ehu for while still flat, I checked the 15 amp fuse on the Pdu this had blown tried to replace blow's again I touched the fuse terminal's with another fuse quite a bad spark must be a short somewhere. I made sure every 12v light was off and nothing plugged into any of the 12v socket's tried it again still bad arcing across the fuse terminal's must be a fault on the Pdu. I checked the 12s socket on the Land Rover with a test light all terminal's doing what they should except the reverse light's pin (I know about this one damn those pesky bullet connector's). Got home on the Sunday and put a charged up car battery on the caravan tried the fuse again still arcing I was convinced now there was a fault on the Pdu I know car batteries are not ideal but I needed to keep the tracker running while I took my van battery home and charged it up. I went up there yesterday with the fully charged van battery swapped it for the car battery tried a fuse no arcing and 12v system working again.I have made arrangement's to take the van back into Lunar next week as it's still under warranty. I'm not sure if I should cancel this now as I say it seem's to have fixed itself or do I still get it checked out?
If its stopped blowing the fuse now there may be a loose wire/connection, It'll be hard to find now its working ok but a intermittent short circuit isn't good for the electrics.
------------- Doing as little as possible for as much as possible...
Another thing I did'nt mention earlier was that on site with the battery disconnected I could put a fuse in and it would not blow I put a test light across the terminal's switched on the Ehu it lit up showing the charger working same thing happened on the 12s socket turn on the ignition the test light lit up showing what would be a charging state if the battery was connected. I reconnected the battery tried a fuse still arcing turned on the Ehu so instead of drawing from the battery it would be charging still arcing across.
Checked battery with a hydrometer after a full charge every cell bang on ok as I said I convinced myself it was a fault on the Pdu but now all is working ok going away in it in a few weekends time so will see how it goes. Just can't help thinking how & why?
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Topic: Fault fixed itself!!!
