reply to 05451874
Re: is 12/2 really necessary?
said by 05451874:Interesting opinion from someone that just joined a whole month ago.
I mean even the so called PRO's here are wrong all the time.
FYI, there are some VERY experienced pros on this board (whizkid3 is one of them) that can not only quote the NEC chapter and verse, but know and understand the physics behind the requirements. It's pretty clear you don't have the understanding they do, so I'd advise that the best course of action is to read and learn.
said by 05451874:Actually, the compressor motor almost certainly momentarily pulled well over 30 A when starting normally. Not at all a big deal, motors do that, but that would still be fine for a 15 A breaker. Any damage caused by overheating wires are almost certainly due to defective connections or hardware.
A compressor can pull 12-13A when it starts normally but when dirty it pulls 15-17A.
Did your electrician note how the outlet to the AC was connected? it sounds like it was back-stabbed, a UL-approved method of connection that is notoriously well known for arcing and poor connections. I suspect that was the issue in your case, not the slow AC start (that would be protected by a properly working 15 A breaker).