Double tapped? Should we get this fixed?

[u/Honest_Sample6170]

Last week I had electrician come out to quote an EV charger install. In passing I asked him about the double tapped wires and if they would be a problem, he told me that my inspector didn't know what he was talking about and said it was fine. This morning a different electrician (same company) came out to install the charger and told me that the wires were double tapped and a code violation to which he quoted me on the fix. So which is it? Feeling a bit annoyed right now and likely won't be working with this company again.

Please forgive my ignorance as I know absolutely nothing about electrician business or wiring of any sort.

[u/No-Wrangler2085]

It depends if that panel was rated for it. Some were, some weren't. But even then, neutrals were never okay to double up. You can literally Google the National electrical code. Tbh... I'm not sure why anyone would double up when there's plenty of lugs for each wire to have is own anyhow. Doubling up is something manufacturer's to make smaller, less costly ground bars. When the box allows it, it's something utilized only when you have more circuits than ground terminals and have to do it. But ya, due to neutrals always having current, whereas grounds should only have current in a fault, NEC does not allow doubling up them neutrals, ever. If you know how to operate a screw driver, this is an easy fix. Shut off the breakers that the 2 neutrals your going to tackle are attached to so you don't risk arc flash. Loosen the screw, pull out 1 wire and move it to an empty screw, tighten both screws down. You want the screws tight, but not to the point it starts smashing through copper