Waeco CFX65 and Traxide 2nd Battery socket

[DoubleDisco]

I have an issue with my Waeco CFX65 fridge not running from the power socket I installed as part of my 2nd battery/Traxide kit. It has previously worked with no issues.

I’ve tested the socket and it is showing approx. 14v with the engine running. When I plug the fridge in nothing happens. I’ve also measured the voltage at the fridge end of the lead and it is also showing approx. 14v.

If I plug the fridge into the standard Aux socket in the front of the car it runs fine.

Does anyone have any ideas on what the issue might be or other tests I can run?

MY08 Discovery 3
4.0l V6

Thanks

Adam

[87County]

If the fridge functions when connected to another socket, AND if (your power cord to the fridge is showing correct voltage (if I have understood what you have posted correctly) , then is it simply that the socket at the fridge is not being fully pushed in ??

Is there a fuse in the fridge that is dodgy ??

Just try to logically eliminate each component if it is OK as you try it.

[Ean Austral]

You haven't got the wiring round the wrong way on the rear socket ? Try plugging something else in and see if it works .

cheers Ean

[Tombie]

You haven't got the wiring round the wrong way on the rear socket ? Try plugging something else in and see if it works .

cheers Ean

No don’t!!!

If it’s the wrong way many devices will blow...

Use a multimeter.

[DoubleDisco]

Thanks for the replies.

I'll try the actual socket again with the multimeter to confirm the polarity is correct.

As I mentioned I have used the fridge in back previously with no issues, however I did have some major repairs carried out on the rear of the car after someone reversed into me (but that's another story). Maybe the smash repairer fiddled with something and wired it up incorrectly.

Thanks again for the suggestions!

Cheers

Adam

[Tombie]

Plug it into the aux socket that works and unplug fridge end and probe there... (take note of polarity)
Now plug it into your new socket and repeat.

Safer than trying to get the meter probe down the centre without risking a short.

[drivesafe]

Hi Adam, how did you test the voltage at the socket?

Also as posted above, make sure the polarity is correct, as you posted, the repairer may have disconnected the socket and then reconnected it in reverse.

[DoubleDisco]

Bingo!

Polarity was reversed despite having black and red cables and the + and - clearly marked on the back of the socket!

Thanks to Ean for the initial suggestion and Tombie for fine tuning the testing techniques! [tonguewink]

Cheers

Adam