John1 wrote:
I have low voltage (~82v) on a light switch in the kitchen. I'm assuming
this is why the light bulb doesn't go on. What is the likely solution
(other switches on the same circuit read normally ~120v. Thanks.

Neutral in the switch box (I assume you're measuring hot-to-neutral) might be
floating. That can give all kinds of funky readings, depending on the load.

If you know where the feed for this box is coming from, check the connections at
the next upstream box.