New 12v socket has killed 2 USB adaptors [Resolved]

Sackmycook

Dogger
VIP Member
T6 Guru
Trying out all my newly installed (not by me) sockets today and one of the 12v seems faulty. Tried a plug in cigarette style usb adaptor with a small led light and it made a strange pop noise, no illumination. As this was a cheapo adaptor, tried a Tomtom spare and same thing happened.
The other 2 retro installed 12v sockets are fine as are all the dash ones and all USB's.
I'm guessing this socket may be faulty. Will it have it's own (hidden) fuse behind a panel? Everything in the sargant fusebox looks ok.
 

boxelder

Senior Member
VIP Member
T6 Guru
Trying out all my newly installed (not by me) sockets today and one of the 12v seems faulty. Tried a plug in cigarette style usb adaptor with a small led light and it made a strange pop noise, no illumination. As this was a cheapo adaptor, tried a Tomtom spare and same thing happened.
The other 2 retro installed 12v sockets are fine as are all the dash ones and all USB's.
I'm guessing this socket may be faulty. Will it have it's own (hidden) fuse behind a panel? Everything in the sargant fusebox looks ok.
It should be wired from the fuse box/bus bar. Can you follow the wiring, or just remove that socket. It still has power by the sound of it, so won't be a fuse issue.
 

Niknak

Mechanic
VIP Member
T6 Legend
Is it exactly like your others as friend of mine thought his were all the same and he wired them In when his didn’t work we found that one had the positive and neg round the wrong way
 

Sackmycook

Dogger
VIP Member
T6 Guru
Not really confident about digging around with electrics ! The sargant fusebox and this problem socket are on the same clipped panel, so bit nervous about taking it off....20210328_185539.jpg
 

Sackmycook

Dogger
VIP Member
T6 Guru
Cheers guys, I'd love to sort this myself if possible. What would be the procedure ?
--- Disconnect battery or just keep controller for leisure/vehicle battery charger off ?
---prise off edge cover and remove fixing screws ?
---swap wires ?
 

Pete C

T30 102bhp converted to camper
VIP Member
T6 Legend
Ok, I wouldn't rush to swap the wires over until you know they are wrong, and a voltmeter will tell you that very quickly.

Pete
 

boxelder

Senior Member
VIP Member
T6 Guru
Not really confident about digging around with electrics ! The sargant fusebox and this problem socket are on the same clipped panel, so bit nervous about taking it off....View attachment 110354
On those sockets, the frame around the edge just unclips/pops off (prise it gently with that screwdriver). Then the socket will pop out and expose the wires - check the polarity. The wires will just be attached with push on connectors.
 

Niknak

Mechanic
VIP Member
T6 Legend
If you carefully put the screwdriver point on the centre of the socket all the way in, and touch the end on the handle and touch an earth point in the van it may work if it lights up the pos and beg are right way round
 
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