Warning Lights - AMR2628

My job for this week had me change the dash lights for updated LED bulbs from Classic Car LED's and they're looking great now (meaning I can actually see them).

I don't have any lights however on the warning light panel - believed to be part number AMR2628.

Can anyone give me some starters for 10 as to where to look at what may be wrong? Fuses? Connectors round the wrong way etc.? I don't want to start down the wrong rabbit hole if I can help it.

No prizes for working out why these “lights” aren’t working ffs

Previous owner stolen the bulbs, hopefully not to cover up a fault.

Unlike normal lamps LED lamps only work if fitted the correct way round, maybe it is a case of just turning to the correct polarity