power convert how to diagnose.

hiii98 wrote:
if i put the black multimeter terminal to a metal ground and the other red on my negative cable i get 12v. i dont think i should be getting any volt on neg, only on the positive side i assume. Both pos and neg cable show 12v, also fan never spins on the converter.

Is the negative meter lead connected to a chassis frame ground? If so what do you measure at the battery using a chassis frame ground? First on the battery posts and then the cables.

I'm guessing your negative wire to the battery is open and hence your measuring 12V on both charger wires.

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