PV system Polarity

[BMW]

I'm in a panic as assessment in 2 days. It appears I have the polarity wrong at the inverter this was corrected in the DC isolator and it's fine now however where should I correct it.

I have used red and black cables so can I just use tape at the switch so the colours are right or do I need to go back on the roof cut off a MC3 and remake changing from Male to female connectors and switch at a panel.

really sorry bit pathetic I know but I'm so concerned about this can't evwen think stright anymore.

Cheers No angry comments please this is my first.

 

[BruceB]

Red and black are not the current (no pun intended) colours anyway. So I would recommend just sleeve/tape with brown and grey appropriately at the terminals in the dc isolator and inverter.

 

[BMW]

Many thanks mate will do.