When I first set up my Air I was getting a few false lightning strokes indications a few times a week. I couldn’t figure out what was causing it because it was so random and the false strokes never corresponded to anything that I could figure out. No motors running (AC, fans, etc) at the time. The only thing I could think of was my water heater was located about 6’ away and maybe somehow that was doing it even though it was an electric water heater and had no kind of “spark” when it started.
To try and solve it I decided to move the Air about 3’ from where it was located (my options to position it is very limited). Low and behold that little bit of a move has almost eliminated the problem. I now only get maybe one a week.
So, if you have that problem even just repositioning the Air a short distance can make a big difference.