Domestic fridge 12v power loss.

[Branston]

Will I ever learn? Wiring in 12v fans behind fridge, a 5 year old could do it! Has anyone got a spare 5 year old? Fans and rocker switch are in placed, wired and ready to connect to 12 v supply. I wired to 12v DC "lights" to find no 12v supply anymore. Possible crossed wires whilst working in confined space. Cannot find any blown fuses, nothing has tripped on circuit board. Everything works on 12 v in van except fridge light. Please see photos. I eagerly await advice on getting power back.T.I.A.

 

[pappajohn]

Have you checked fuses with a multimeter or just a visual check.
Fuses can blow at the very end where you can't see it.

 

[Branston]

Have you checked fuses with a multimeter or just a visual check.
Fuses can blow at the very end where you can't see it.

Just visual but have swopped fuses with others that I know to be working.

 

[Diabalo]

With the fuse out do you have a live one side at the consumer box?

 

[Branston]

With the fuse out do you have a live one side at the consumer box?

Sorry Diablo, I'm not sure what you mean?

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[Diabalo]

Sorry Diablo, I'm not sure what you mean?

Remove the fuse then test for a live either side of where the fuse has come out from, one side should be live, the other side becomes live once you put the fuse back in to complete the circuit, as long as the fuse is ok that is.

 

[Branston]

I will try that.

 

[Jev88]

On my older fridge we found a junction box under the fridge that had corroded.....hence fuse live but nothing at the fridge.

 

[autorouter]

Just confirming that you are aware, there are two 12V supplies to the fridge. The thin wires are the Low Current (LC) supply, that powers the fridge control electronics and ignition etc. The LC supply comes from the leisure battery, and may not have its own fuse on the 12V fusebox. The thick wires are the 12V High Current (HC) supply to the fridge 12V heater element. The HC supply comes from the alternator/starter battery and may only be powered when the engine is running. There will probably be a separate fuse for this, maybe near the starter battery. Or a dedicated fuse of about 15A or 20A on the 12V fusebox.

Looking at your fusebox, the LC supply is 5A 'FRIDGE IGN', the HC supply is (20A?) 'FRIDGE'.

 

[Branston]

Just confirming that you are aware, there are two 12V supplies to the fridge. The thin wires are the Low Current (LC) supply, that powers the fridge control electronics and ignition etc. The LC supply comes from the leisure battery, and may not have its own fuse on the 12V fusebox. The thick wires are the 12V High Current (HC) supply to the fridge 12V heater element. The HC supply comes from the alternator/starter battery and may only be powered when the engine is running. There will probably be a separate fuse for this, maybe near the starter battery. Or a dedicated fuse of about 15A or 20A on the 12V fusebox.

Looking at your fusebox, the LC supply is 5A 'FRIDGE IGN', the HC supply is (20A?) 'FRIDGE'.

I will investigate.